Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App. Download the App from Google Playstore ( bit.ly/2SHIPW6 ) Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6 Physicswallah Website: physicswallahalakhpandey.com/ LAKSHYA Batch(2020-21) Join the Batch on Physicswallah App bit.ly/2SHIPW6 Registration Open!!!!
What will you get in the Lakshya Batch? 1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey. 2)Live Classes and recorded Video Lectures (New, different from those on UA-cam) 3)PDF Notes of each class. 4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level. 5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture. 6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021) 7)In case you missed a live class, you can see its recording. 8)You can view the videos any number of times. 9)Each chapter will be discussed in detail with all concepts and numericals 10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams. ****Test Series for XI & XII**** We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year. The test series follows very logical sequence of Basic to Advance questions.& Evaluation of Test and Solution to all the questions at the end of the test. MoLE ConCepT in 40 mins : CBSE / ICSE : CHEMISTRY : Class 10, Class 11, Class 12 ua-cam.com/video/bI-yhj9WgxQ/v-deo.html MOLE Concept in 6 mins : Class X CBSE / ICSE : ua-cam.com/video/WGSGtdglZzg/v-deo.html MOLE CoNcEpT : STOICHIOMETRY : Class X , XI , XII : CBSE /ICSE ua-cam.com/video/Qk2q1KaVUFA/v-deo.html MolecuLar FormuLa and EmperiCal Formula | Percentage CompositioN | Class 10 , 12 ICSE / CBSE ua-cam.com/video/nX1b6GEJ8XU/v-deo.html Mole ConcepT 01 | How To CalcuLate Number of Moles | Mass Volume Relationship | Revision ua-cam.com/video/fAJg1HaI8T4/v-deo.html How to BALANCE any Chemical Equation - ABCD Method | Best Way to Balance Chemical Equation ua-cam.com/video/7Wx1ooWnjQ0/v-deo.html Mole Concept || Class 9,10,11 || Stoichiometry || Percentage Composition | Compilation Of OLd Videos ua-cam.com/video/omuhMcN9z-M/v-deo.html
He didn't knew at that time that he's gonna be the most loved physics teacher in India. Edit 1 : Not only in India !!! Edit 2 : Me didn't knew too I will get 1k likes on my comment XD....Thanking all of you !
India needs science teachers like you...school teachers should watch your videos...they r just bothered about getting paid ...and here we have alakh sir who inspite of living far away frm us is teaching us with all his heart..thankyou sir for your efforts..your hard work will definitely help us to score excellent grades...you have become the king of your students...your efforts are highly appreciated sir...thankyou so much 😊
thanx no , the payment from you tube is very mere uptill now , the time I put in I earn 10 times of this when I put the same time at my institute. But it's not about money only. I feel positive to do this
But the team is useless🙄. There is no comparison between sir and his team. Sir is teaching 1000% good than his team😌. I think sir's old video is brilliant than his hire teacher. I don't think sir take a good step after hire a team of teachers.😒
@@glovers1st839 it is not good to say useless because their teaching methods may be not good but their intention is to provide a better education to us
If "CHEMISTRY" students start making films, *Tera acid mera base *Rang de benzene *Humara beaker aapke pas hai *Life in a Hetero *Laaga apron me daag *3 test tubes *Ajab estimation ka gajab result *Munna bhai HCL *Mr. Ketone *Jab we experiment...! 😜😜Dialogue baazi in chemistry.. *My name is BOND...Covalent Bond! *Rishtey mein to hum tumhare Allotrope lagte hain,naam hai...Diamond! *D-block se darr nahi lagta saheb, F-block se lagta hai! *Ek baar jo maine bond toda to main activation energy ki bhi nahi sunta! *Resonance ko neglect karna mushkil hi nahi na mumkin hai! *Ye electron mujhe dede Carbon! *Ek neutron ki keemat tum kya jano Hydrogen Babu! To all science students 😂😂😂😂😂😂😂😂 Just for u...
00:04 Mole concept and Avogadro's number 01:04 Basic concepts of Chemistry 02:53 Understanding atomic mass unit in Chemistry 03:53 Understanding the concept of Mole in Chemistry 05:52 Oxygen atomic mass calculation and mole concept 06:47 Understanding Mole Concept through Atomic Mass 08:45 Calculating number of moles from given atomic masses 09:55 Calculating moles from given mass and atomic mass 11:42 Calculating molecular weight and moles using Avogadro's number 12:41 Understanding the molecular weight of oxygen. 14:43 Molar Mass Calculation with Examples 15:45 Understanding Molar Mass and Molecular Mass 17:31 Understanding the concept of moles in chemistry 18:54 Calculating molar mass by dividing given mass 20:29 Understanding moles and gram atoms 21:14 Mole concept: Using molar mass formula 23:17 Understanding the concept of moles in a molecule 24:08 Understanding Moles and Molar Calculations 25:54 Molar volume and its significance 26:49 Calculation of volume occupied by three moles of carbon dioxide 29:12 Understanding Mole Concept in Chemistry 30:17 Understanding the concept of moles in hydrogen gas 32:01 Calculating volume using moles 32:53 Understanding molar concept in stoichiometry 34:50 Understanding Mole Concept in Chemistry 35:50 Understanding the concept of MoLE in Chemistry 37:35 Introduction to Mole Concept and its application in chemical equations
@@gajulasreevennela6883 I want your support, if your like it , then hit like button, and share , because you don't knw your ine share help anyone to get education ua-cam.com/video/fr21t1AvoJA/v-deo.html
36:43 To solve this problem, we'll use stoichiometry to find the mass of H2 required and NH3 produced. 1. Calculate the molar mass of N2: Molar mass of N2 = 14 g/mol 2. Use the stoichiometry of the reaction to find the molar ratio between N2 and H2: 1 mol N2 : 3 mol H2 3. Calculate the number of moles of N2: Moles of N2 = Mass of N2 / Molar mass of N2 = 14 g / 28 g/mol = 0.5 mol 4. Use the stoichiometry to find the moles of H2 required: Moles of H2 = Moles of N2 × (3 mol H2 / 1 mol N2) = 0.5 mol × 3 = 1.5 mol 5. Calculate the mass of H2 required: Mass of H2 = Moles of H2 × Molar mass of H2 = 1.5 mol × 2 g/mol = 3 g 6. Now, use the stoichiometry to find the moles of NH3 produced: Moles of NH3 = Moles of N2 × (2 mol NH3 / 1 mol N2) = 0.5 mol × 2 = 1 mol 7. Calculate the mass of NH3 produced: Mass of NH3 = Moles of NH3 × Molar mass of NH3 = 1 mol × 17 g/mol = 17 g So, the mass of H2 required is 3 grams, and the mass of NH3 produced is 17 grams from 14 grams of N2 gas. ❤❤ thankyou ❤❤
The only teacher who pays more attemtion on teaching than the comment section . Never commented on anyones comment neither he even liked any comment . Thats our wallah
Sir,I can only say that 'best' has four letters and 'alakh' has five it means "Alakh is more than best" Sir,u r the best teacher of chemistry and physics
Heyyyy bhagwaan; kyaaaaa teacher hai 😭😭😭😱😱. Mujhe Aaj Tak ye topic palle nahi pada par sir ne to makkhan ki tarah padha diya. Bhai kamaaal h sir aap. Koi shabd nahi h sir aapke liye bus Dil se duayein hai....🙏🙏🙏 Love you sir jiiiii😍😍😍
Molar Mass: First, we need to know the molar mass of methane (CH4). Each element in the molecule contributes its atomic mass to the overall molar mass. Carbon (C) has an atomic mass of approximately 12 g/mol. Hydrogen (H) has an atomic mass of approximately 1 g/mol. In CH4, there's one carbon atom and four hydrogen atoms. Therefore, the molar mass of CH4 = (12 g/mol for C) + (4 g/mol for 4H) = 16 g/mol. Number of Moles of CH4: We have 32 grams of CH4. Using the molar mass we just calculated (16 g/mol), we can find the number of moles of CH4 present: Moles of CH4 = Mass of CH4 / Molar mass of CH4 Moles of CH4 = 32 g / 16 g/mol = 2 moles Mass of Hydrogen in CH4: Each molecule of CH4 contains 4 hydrogen atoms. Since we have 2 moles of CH4, the total number of hydrogen atoms: Total H atoms = Moles of CH4 * Number of H atoms per molecule Total H atoms = 2 moles * 4 atoms/molecule = 8 atoms Mass of H atoms: To find the total mass of hydrogen atoms, we need to multiply the number of hydrogen atoms by the atomic mass of hydrogen: Mass of H atoms = Total H atoms * Atomic mass of H Mass of H atoms = 8 atoms * 1 g/mol = 8 grams Therefore, there are 8 grams of hydrogen atoms present in 32 grams of methane (CH4).
I literally spent my precious hours trying hard to understand this chapter until I found this video of yours. Alakh Sir you are a blessing for us students. No matter how much I thank you it's less. You Truly are the best teacher we can ever have in this world. Thank you so much sir. May God Bless You ❤️🙏
Since class 9th I wasn't able to understand this concept and now I'm in 11 and wanted to learn the same concept as my teacher told it's important to revise the concept I came here and in just 40 mins u did that which couldn't happen in last 2 years . Really u are great . Thanks a lot sir .
Got deserving success... Like he explained one of the toughest topic MOLE CONCEPT when a child comes to class 11 with such a vast syllabus just in 40 mins, along with numericals and of course great explanation.... First time here and forced to write such a long comment .... You Nailed🥵
My journey with Physics Wallah HAD STARTED WITH THIS VIDEO when sir has only 3k subscribers.......... Thank You Again Sir............ For your efforts and help...
Trust me it is very helpful : Class 11 Chemistry : Ch -1 short notes of physicswallah in (2-3 pages) 💯|| (Link in description)🌦️ ua-cam.com/video/T6RR5OxLXbA/v-deo.html
Sir, aap ne 17:20 mein molar mass kyon nikala? Hum to directly given mass Ko atomic mass se divide karke simply no. of atoms la sakte hain na...........
Sir i admire you so much You are my inspiration. When the professor of the institute where i go teaches the same part , then i didn't understand. But when i had seen your lecture on this topic, my mind changed from a black stone to a crystal clear mirror. Thank you so much sir ❤️ Love by- jee aspirant 2025 Now in class 11 in 2023
*A small tip for viewers* *Who just started this video , I request* *them to watch the complete video* *guys I was struggling with this concept* *from few days and many of* *our class students have already done* *this in their foundation courses* *And this is the best video I found in utube and this far better than the rest*
I studied mole concept very well in 9th ngl , our coaching teacher had done b tech from iit roorkee and he taught us many things of 11th like molarity , molality , formality , normality and advanced bohr model which contains epsilon not 😅 . I m in 10th and i didnt remeber much about that 1/4π Epsilon not ×ze×e/r² ...... , It was very tough for me so i left most of the part ....... Also 1st time when i went in my coaching (vmc) in 8th class , i was so damn confused that what was sir teaching , that was far away from my syllabus and i learned that in 10th .......... , It was ion electron method of solving redox reaction , yeah i learned in 10th 😬 .
I have also studied pH calculation , basics of log concept which is necessary for finding pH and few small small concepts of 11th , idk why but i only like chemistry out of the 3
Sir i have newer seen an explanation like this no time wasting great explaination perfect examples I really like your video and i have shared this video to all my friends to help them toooo..... again thankyou sir
Guys!!! Note:the question of calculate mass of hydrogen atom present in 32 g of methane ?? question sir said answer has 4moles but the right answer is 8 moles becoz 2 moles of methane give 2*4=8moles
The only difference between normal teachers and him is, they want to finish the syllabus and this guy wants to finish all the doubts of Students 🤘🤘. Hats off sir.
I'm a candidate of grade 9th . I watch his videos to find various numericals with sol.( to examine myself).. Being a JEE ASPIRANT ,I watch the topics of 11th . After watching these videos , I would like to say , " Some teachers must follow him to be an ideal teacher. From academical and ethical aspects, He is one of the best instances." Keep watching these engrossing classes.
Broo Mene bhi 9th me hi ye padha tha now i'm in 10th Nd Esme chemistry me kuch khaas nhi Thaa sb complete kr liaa Ab 11th ka basic strong kar rhe hain (Maja ata hai cheme. padhne me)
SIR 23:24 yaha pe apne sirf 1 mole of ch4 me 4 mole hydrogen atom liya par vaha total 2 mole hai to to wo double hoke 8 hojayega {1mole of ch4= 4 mole of hydrogen atom} so, {2mole of ch4= 2× 4 mope of hydrogen atom} 2 mole of ch4 will have 8g of hydrogen atom!
Hello sir. I am an Arts student now. But I used to watch your videos back when I was in 10th standard and It had always served me well. Mesmerised by your teaching and explanatory skills , I used to believe that you were wasting your life here on UA-cam while making the lives of thousands. I am more than overwhelmed to see where you have reached in your life. Thank you sir for teaching us. God bless you! ❤️
Thus video has been uploaded 6 years ago but still it is helpful for students Salute to Alakh sir Sir thankyou so much 💞 Love you sir Sir you are A in lakh❤❤❤❤
It's 2023 October almost 6 years old, watching this module of Alakh Sir, it's really treasury for students... I didn't understand mole concept but Alakh Sir explained it very welll... Hats Off to Sir!! ❤
Sir, I think you should start private classes because you teach everything very nicely and India needs teachers like you. I am in 12 th and I got 96 in chemistry just because of you.
Priyansh if he could teach privately..he could ..but his aim is to teach all the students. He want to help students like us.without expecting money or whatever
@@suhanikumari6518 lol Your Exams Are Near Too Mine Also They Are 9 days away Lets Complete The Syllabus As Fast As we Can Oh i got Distracted ! shit ...
सर कभी-भी physics and chemistry समझ नहीं आयी BSc भी2010 में रट के कर लिया teution nhe पढ़ पाये घर की स्थिति ठीक नहीं है लेकिन अगर हम करोड़ पति होते तो कम से कम 90% money आप पर कुर्बान कर देते क्योंकि आप का काम middle family ke students के लिए एक बरदान है you are a god for me and many poor students 🙏🙏 लोगों को अपने जीवन में चार धाम केदारनाथ धाम बद्रीनाथ धाम साईं बाबा मंदिर जाने की इच्छा होती है लेकिन मेरी एक ही इच्छा है कि एक बार आप के face to face दर्शन हो।आप को मैंने अपनी हैसियत के अनुसार बहुत ही कम रूपए बताते भी शर्म आ रही है 50 sent kiye pata nhe aap ko mil paye ya nhe ......lv u tooo always.....❤️❤️❤️❤️
today , during the time of corona pandemic , it is really hard to learn from virtual classes as teachers are orally explaining us the topics , making it more difficult to understand but after a month from April , today @8/5/20 I am confident enough that I am going to crack the board exams bcoz your teaching is amazing , simple and understandable which makes concepts easier and interesting...thank you sir for all your hard work to teach us
मेरे पास शब्द नहीं है। इन महान शिक्षक के लिए मुझे सबसे अच्छा तब लगा जब इन्होंने पंखे को खोला इसका तात्पर्य यह है कि इतने समय से गर्मी में पढ़ा रहे थे। आप को चरण स्पर्श है 🙏🏿🙏🏿🙏🏿✨✨✨✨
The best video on Mole concept 👌. I watch this video during lockdown. You deserve more and more subscribers . Now the topic is clear. You worked very hard for us. Thanks a bunch sir 🙂.
At 24:00 Sir, H4 molecule ke 2 mole hai to H atom ke 2x4=8 moles honge. Aapne 4 moles of H likha hai and 8 moles of H hai to total number of H atoms are 8 x 6.023 x 10^23 and that's why total mass of 8 moles of H atoms will be 8 x 6.023 x 10^23 amu.
Sir in 24:51 can't we do like this... In CH4 we have 4 moles of hydrogen So by formula no.of moles=mass given / molar mass So in CH4 the given mass is 32 grams 4 moles = 32 g / X X= 32/4 = 8 Sorry if I did wrong....btw I love Ur teaching sir 🙏
I think aise karna sahi nahi hai kyuki 32g me 1 mole C aur 4 moles of H atoms ...so aisa nhi likh sakte ki.... no of moles = given mass / molar masss Kyuki given mass total CH4 ka h na ki only H4 ka !! I hope it helps !!!
Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
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Physicswallah Website: physicswallahalakhpandey.com/
LAKSHYA Batch(2020-21)
Join the Batch on Physicswallah App bit.ly/2SHIPW6
Registration Open!!!!
What will you get in the Lakshya Batch?
1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
2)Live Classes and recorded Video Lectures (New, different from those on UA-cam)
3)PDF Notes of each class.
4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
7)In case you missed a live class, you can see its recording.
8)You can view the videos any number of times.
9)Each chapter will be discussed in detail with all concepts and numericals
10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
****Test Series for XI & XII****
We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
The test series follows very logical sequence of Basic to Advance questions.&
Evaluation of Test and Solution to all the questions at the end of the test.
MoLE ConCepT in 40 mins : CBSE / ICSE : CHEMISTRY : Class 10, Class 11, Class 12
ua-cam.com/video/bI-yhj9WgxQ/v-deo.html
MOLE Concept in 6 mins : Class X CBSE / ICSE :
ua-cam.com/video/WGSGtdglZzg/v-deo.html
MOLE CoNcEpT : STOICHIOMETRY : Class X , XI , XII : CBSE /ICSE
ua-cam.com/video/Qk2q1KaVUFA/v-deo.html
MolecuLar FormuLa and EmperiCal Formula | Percentage CompositioN | Class 10 , 12 ICSE / CBSE
ua-cam.com/video/nX1b6GEJ8XU/v-deo.html
Mole ConcepT 01 | How To CalcuLate Number of Moles | Mass Volume Relationship | Revision
ua-cam.com/video/fAJg1HaI8T4/v-deo.html
How to BALANCE any Chemical Equation - ABCD Method | Best Way to Balance Chemical Equation
ua-cam.com/video/7Wx1ooWnjQ0/v-deo.html
Mole Concept || Class 9,10,11 || Stoichiometry || Percentage Composition | Compilation Of OLd Videos
ua-cam.com/video/omuhMcN9z-M/v-deo.html
Sir aapke balo ka kya hua?
Sir titration
Wowwww
balon ka kya krna pdate to accha hain na
Sir thoda dheere dheere samjhaiye please
He didn't knew at that time that he's gonna be the most loved physics teacher in India.
Edit 1 : Not only in India !!!
Edit 2 : Me didn't knew too I will get 1k likes on my comment XD....Thanking all of you !
Absolutely correct
Class 12th clearing backlog😥anyone?
Hn bhai sahi bolaa
@@philanthropist2010 same
@@philanthropist2010 Nahi ..Class 11th.But Bahut late chal raha hoon :(
India needs science teachers like you...school teachers should watch your videos...they r just bothered about getting paid ...and here we have alakh sir who inspite of living far away frm us is teaching us with all his heart..thankyou sir for your efforts..your hard work will definitely help us to score excellent grades...you have become the king of your students...your efforts are highly appreciated sir...thankyou so much 😊
yOU TUBE pays him dosent it
thanx
no , the payment from you tube is very mere uptill now , the time I put in I earn 10 times of this when I put the same time at my institute. But it's not about money only. I feel positive to do this
+Physics Wallah wow sir ab ja kr concept clear hua h Thank you very much sir.....
Sir ki hobby ha
Khushi Sabharwal u r right😇😇😇
Success level : *you start all alone and now u have a great team of teachers*
*RESPECT+++*
San Andreas respect ++👌👌
But the team is useless🙄. There is no comparison between sir and his team. Sir is teaching 1000% good than his team😌. I think sir's old video is brilliant than his hire teacher. I don't think sir take a good step after hire a team of teachers.😒
Here we go again !!
@@glovers1st839 it is not good to say useless because their teaching methods may be not good but their intention is to provide a better education to us
@@glovers1st839 they are not completely useless but yes i get your point..... thats why we are watching this video
7 years old video still helping and will be helping students to clear boards exam, JEE and NEET
Who was confused in mole concept in 9th standard but ignored that time 😋
but come here in regret (11th science )😂😂👍
Mere sath bhi yahi hua tha 😂
Mereh saith bhi
Sahi kaha bhai
Mere saath yhi hua
Damn!! Are you a spy?
If "CHEMISTRY" students start making films,
*Tera acid mera base
*Rang de benzene
*Humara beaker aapke pas hai
*Life in a Hetero
*Laaga apron me daag
*3 test tubes
*Ajab estimation ka gajab result
*Munna bhai HCL
*Mr. Ketone
*Jab we experiment...!
😜😜Dialogue baazi in chemistry..
*My name is BOND...Covalent Bond!
*Rishtey mein to hum tumhare Allotrope lagte hain,naam hai...Diamond!
*D-block se darr nahi lagta saheb, F-block se lagta hai!
*Ek baar jo maine bond toda to main activation energy ki bhi nahi sunta!
*Resonance ko neglect karna mushkil hi nahi na mumkin hai!
*Ye electron mujhe dede Carbon!
*Ek neutron ki keemat tum kya jano Hydrogen Babu!
To all science students
😂😂😂😂😂😂😂😂
Just for u...
What a sign of creativity dude
I mean.... Yeah sab sochte kese ho??
Bhai Agar yahi dimag padhai meh lga leta na toh ajj top krta tu🙂
@@komalshandilyaa creativity ki koi izzat hi nhii hai
Haaaaaaaa
padhle bhai saste joke marne se ghar nhi chlta 🗿
Hats off to his struggle❤️
This man owns every students heart!
is your term 1 exams approaching and u came here to clear concepts by Alakh sir????
@@XD-he6ep bro starting from 1st chap ...and now m very depressed
@@RajanGupta-cj4zm Me also bro . I found this chapter most confusing
@@madhurbhargava7781 yeh
Hatt us really off 🤣🤣🤣🤣
00:04 Mole concept and Avogadro's number
01:04 Basic concepts of Chemistry
02:53 Understanding atomic mass unit in Chemistry
03:53 Understanding the concept of Mole in Chemistry
05:52 Oxygen atomic mass calculation and mole concept
06:47 Understanding Mole Concept through Atomic Mass
08:45 Calculating number of moles from given atomic masses
09:55 Calculating moles from given mass and atomic mass
11:42 Calculating molecular weight and moles using Avogadro's number
12:41 Understanding the molecular weight of oxygen.
14:43 Molar Mass Calculation with Examples
15:45 Understanding Molar Mass and Molecular Mass
17:31 Understanding the concept of moles in chemistry
18:54 Calculating molar mass by dividing given mass
20:29 Understanding moles and gram atoms
21:14 Mole concept: Using molar mass formula
23:17 Understanding the concept of moles in a molecule
24:08 Understanding Moles and Molar Calculations
25:54 Molar volume and its significance
26:49 Calculation of volume occupied by three moles of carbon dioxide
29:12 Understanding Mole Concept in Chemistry
30:17 Understanding the concept of moles in hydrogen gas
32:01 Calculating volume using moles
32:53 Understanding molar concept in stoichiometry
34:50 Understanding Mole Concept in Chemistry
35:50 Understanding the concept of MoLE in Chemistry
37:35 Introduction to Mole Concept and its application in chemical equations
Thanks🎉🎉
No introduction, no ads no timewaste only pure chemistry which got 7.6 million❤❤
There are ads dude
that ads are not given by sir , he is trying to say he is not promoting any thing not even his app
Now 8 million
@@rajputjay303610
And 8.1m now;)
Who else are here for Neet/Jee 2023-2025 batch!??? (Now in 11th) ❤❤
Same
Same
Same me too NEET 😁
Jee ❤
Same neet
Who else agree with me that these recorded videos of alakh sir are infinite times better than any other live classes
Yes
Vo sab to thikk h but bhyi tum 10th ke result se pehle hi 11th start kar diye...🙂 salute
@@shauryasahu1618 bhai mai 12th ke baad padh rha
@@shauryasahu1618 and bhi i am now in 11th i want watch this because of preparation of jee
Yup Neet Aspirant here 🎉
Anyone here in September 2024…?
Yup
Yes I'm here
Me
Bhai
Me
Anyone from 2023-24 batch? But dude ngl this one video cleared my ALL doubts on mole concept, THANK YOU SO MUCH SIR!
What are you preparing for ?
@@awanzzn JEE 2025 and wbu
@@dynamicadithya1902 Bro same
@@awanzzn neet 2025
@@CoralineYann all the best 👍🏻
Even after 6 years it's helping the students 😮 Salute to you alakh sir 🫡😊
One of the best teacher on UA-cam Sir helping lot in this lockdown
ua-cam.com/video/ckAjxpTMuX8/v-deo.html
ua-cam.com/play/PLI8IC_K5WGXKGfxf_aMjRihKF8LhbKLBu.html
Best video for Co-ordination Chemistry
Have to agree
And dear sir also for math English
@@gajulasreevennela6883 I want your support, if your like it , then hit like button, and share , because you don't knw your ine share help anyone to get education
ua-cam.com/video/fr21t1AvoJA/v-deo.html
36:43
To solve this problem, we'll use stoichiometry to find the mass of H2 required and NH3 produced.
1. Calculate the molar mass of N2:
Molar mass of N2 = 14 g/mol
2. Use the stoichiometry of the reaction to find the molar ratio between N2 and H2:
1 mol N2 : 3 mol H2
3. Calculate the number of moles of N2:
Moles of N2 = Mass of N2 / Molar mass of N2
= 14 g / 28 g/mol
= 0.5 mol
4. Use the stoichiometry to find the moles of H2 required:
Moles of H2 = Moles of N2 × (3 mol H2 / 1 mol N2)
= 0.5 mol × 3
= 1.5 mol
5. Calculate the mass of H2 required:
Mass of H2 = Moles of H2 × Molar mass of H2
= 1.5 mol × 2 g/mol
= 3 g
6. Now, use the stoichiometry to find the moles of NH3 produced:
Moles of NH3 = Moles of N2 × (2 mol NH3 / 1 mol N2)
= 0.5 mol × 2
= 1 mol
7. Calculate the mass of NH3 produced:
Mass of NH3 = Moles of NH3 × Molar mass of NH3
= 1 mol × 17 g/mol
= 17 g
So, the mass of H2 required is 3 grams, and the mass of NH3 produced is 17 grams from 14 grams of N2 gas.
❤❤ thankyou ❤❤
In class 10, I heard that alakh sir's old lectures are like treasury for students. In class 11 I realised it
Love u Alakh sir !!
The only teacher who pays more attemtion on teaching than the comment section .
Never commented on anyones comment neither he even liked any comment .
Thats our wallah
True!!!!!
ABD de villers ke fan hoo kya
bruh how dumb can you be. A teacher should always see the doubts, it means he is ignoring the comment section
Ha dada
Konsa clg mila bhai aapko?
Sir,I can only say that 'best' has four letters and 'alakh' has five it means
"Alakh is more than best"
Sir,u r the best teacher of chemistry and physics
In this way my name has 6 letters so i am far more better than best🤣
Agreed
My name has 10 letter so how much I talented 🤣🤣plzz tell me
Iss hisaab se toh mai EINSTEIN se bhi zyaada samajhdaar hua 😂😂
@@magiccraft7645 🤣🤣🤣🤣😘
alakh sir, a Student from Kashmir. From the deepest point of my heart thank you for everything. Kya padate ho fireeee!!!!
Heyyyy bhagwaan; kyaaaaa teacher hai 😭😭😭😱😱. Mujhe Aaj Tak ye topic palle nahi pada par sir ne to makkhan ki tarah padha diya. Bhai kamaaal h sir aap. Koi shabd nahi h sir aapke liye bus Dil se duayein hai....🙏🙏🙏
Love you sir jiiiii😍😍😍
Mere saath bhi
😁
@HARSH ARORA corona hua h kya ??
@@harakalyansahoo4612 best
@@BigPPwhofckedyourmomWoW 😅😅😅
Those who seeing this in APRIL 2021 like others comment.
Edit:- itne saare log hai Jo sirf exam k wakt suru karte hai😱
Can't expect this much likes.
Bro...bhot hai hm jaise..😂
I'm also bro
Me also😂🙌
Mai bhi
Hlo bro
One of the best teacher on UA-cam.
Helping a lot in this lockdown.
Very true
You are right bro
Watch my video
ua-cam.com/video/LH9Gop4-SUM/v-deo.html
Very correct
Yup
This Video is still worth it now in 2024 June
Fr
Yeah fr
Haa 😅
Backlog h na islye😬
Bro literally I am there in 2023 and still found it easy to understand. Hats off Alakh Sir ❤❤
Same bro..❤
Same here
Time span se difficulty level change nahi hogai same hoti hai😅
@@ahmarali8588 wahi to but PW ka content bhi to purana nhi hota!
Really it is very simple teaching with 100% understanding.
Who else are here for the mole concept for 2024 to 2026 batch whose mole concept was deleted from syllabus in class 9th😂❤
soo true
Yep I have a grudge against cbse
🥹🤝
Icse ❤😢board
Ma bhi ninth ma delete krdiye tha mole concept ❤
I am in Ninth
Sir u r awesome teacher😎😎
Never ever seen a teacher teaching
Like u😌😌
Is everyone agree with me?
Of course
Yess
Yeah bhi koi bolne ki baat hai yaar. sir , hamlog apka sukhrguzar hai
Yes,I'm agree
I gave you 100th like
Molar Mass:
First, we need to know the molar mass of methane (CH4). Each element in the molecule contributes its atomic mass to the overall molar mass.
Carbon (C) has an atomic mass of approximately 12 g/mol.
Hydrogen (H) has an atomic mass of approximately 1 g/mol.
In CH4, there's one carbon atom and four hydrogen atoms.
Therefore, the molar mass of CH4 = (12 g/mol for C) + (4 g/mol for 4H) = 16 g/mol.
Number of Moles of CH4:
We have 32 grams of CH4.
Using the molar mass we just calculated (16 g/mol), we can find the number of moles of CH4 present:
Moles of CH4 = Mass of CH4 / Molar mass of CH4
Moles of CH4 = 32 g / 16 g/mol = 2 moles
Mass of Hydrogen in CH4:
Each molecule of CH4 contains 4 hydrogen atoms.
Since we have 2 moles of CH4, the total number of hydrogen atoms:
Total H atoms = Moles of CH4 * Number of H atoms per molecule
Total H atoms = 2 moles * 4 atoms/molecule = 8 atoms
Mass of H atoms:
To find the total mass of hydrogen atoms, we need to multiply the number of hydrogen atoms by the atomic mass of hydrogen:
Mass of H atoms = Total H atoms * Atomic mass of H
Mass of H atoms = 8 atoms * 1 g/mol = 8 grams
Therefore, there are 8 grams of hydrogen atoms present in 32 grams of methane (CH4).
One thing is missing in this lecture
The motivation sound at starting: "HELLO BACCHOOO"
Because it is an old video.
It's his style😂
you are wrong its 'helooo bachoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo'
Bro tab hello baccho ka invention nhi hua tha 😂❤️
Yeah that's missing ❤️
I literally spent my precious hours trying hard to understand this chapter until I found this video of yours.
Alakh Sir you are a blessing for us students. No matter how much I thank you it's less.
You Truly are the best teacher we can ever have in this world.
Thank you so much sir.
May God Bless You ❤️🙏
Same here
Yes bro
Alakh sins 😂
To ache se smjh gay aap...kyuki mujhe abhi tak samjh nhi aa ra yrr..
O
Since class 9th I wasn't able to understand this concept and now I'm in 11 and wanted to learn the same concept as my teacher told it's important to revise the concept I came here and in just 40 mins u did that which couldn't happen in last 2 years . Really u are great . Thanks a lot sir .
@Rishav SINGHANIA 😂😂😂
Same situation
Arpita can we study whole 11th class on UA-cam with physicswallah sir only for science
@@mohammadzaid9608 yes
Definitely!! I'm in 11th also ...
@@dhruvkumarkanaujia but bro how do you know 🤷🏻♂️that this is workfull means is we can do our refrence book's or our schl exam's by this
Anyone in November 2024❤
Me😅😅😅😅
mai hu na 😂
Sabki backlog hai kya 😢😢 mere taraf 😢😢
@AnushaSen-kq7xq haan . Are u on instagram
Meeeeeeeeeee
Got deserving success... Like he explained one of the toughest topic MOLE CONCEPT when a child comes to class 11 with such a vast syllabus just in 40 mins, along with numericals and of course great explanation.... First time here and forced to write such a long comment .... You Nailed🥵
Yes
Who is here in 2021?? 😂
🤣🤣
Me too
My 11 syllabus is starting now in 2021😂😂😟
@@anjalibhagat8883 same here...🤣🤣
Yeah 😂
Wonderful explanation. Will definitely recommend this to my juniors and friends. Thank you so much Alakh Sir.
Hi
My journey with Physics Wallah HAD STARTED WITH THIS VIDEO when sir has only 3k subscribers..........
Thank You Again Sir............
For your efforts and help...
he went from 3k to 806k in 6 months 🙄... dedication and hardwork do pay off 👌✌️
@@successlife4123 soon 1M💕💕😘😘😅😅😅
tq u sir
@@sheleshverma725 u also have chemistry paper on 22
@@simyshukla4037 Ho ge 1M😇😇😇😎😎😎
He is a physics professor and teaching chemistry like a pro 👍👍
God bless you dear❤
😁😁🤟
Yeah
Ohhhh yaaaa 💦👍
Our country is looking for teachers like you,sir...
THANKS A LOT
Ya you are right
Yes
Insta id let's make class 11 cbse group mine omkar._dash follow and let's do it....
Watch this video on youtube-Examination in life never give up mufti menk by merciful servant
Nice
Who else is here in 2024 to clear concept and score highest possible marks in future exams 🔥⚡⚡🌊👍
Clear*
@@Krishna_1027 oh thanks 😊
not gonna lie, by the end of this video I was able to solve these kind of questions orally and very quickly. Thank you sir for making this viodeo.
Viodeo
Vieodio
Veodio
Trust me it is very helpful :
Class 11 Chemistry : Ch -1 short notes of physicswallah in (2-3 pages) 💯|| (Link in description)🌦️
ua-cam.com/video/T6RR5OxLXbA/v-deo.html
@@ayaankoth1457 vieodio
Years after years passed.....
But all these old videos of Alakh sir are a booster to an average student.....
Thanks a lot sir 🙏🙏🙏🙏🙏🙏
Free Assignments and Notes physicswallahalakhpandey.com/
Thank you so much....
India needs people like you, who want education to be free for everyone....
Sir, aap ne 17:20 mein molar mass kyon nikala? Hum to directly given mass Ko atomic mass se divide karke simply no. of atoms la sakte hain na...........
Physics Wallah - Alakh Pandey 😘😘😘😘
Ye rule sabhi elements k liye valid nhi h
i am in class 9 and it is very useful for me
Who thinks alakh sir 7 year old video is still helpful for us😅😅😊😊❤❤
Sir i admire you so much
You are my inspiration.
When the professor of the institute where i go teaches the same part , then i didn't understand.
But when i had seen your lecture on this topic, my mind changed from a black stone to a crystal clear mirror.
Thank you so much sir ❤️
Love by- jee aspirant 2025
Now in class 11 in 2023
me too
Same by my side Sir ❤
Only edit:- neet aspirant 2025
@@miligupta4919 hi mili
Me too😘😘
2:06
Correction : 9.1 * 10 raised to -28 INSTEAD OF 9.1 * 10 raised to -27
- 31 *
@@ARStudy sahi hai lekin kg or gram ka farak hai
Who’s watching this in 2020 . . .
I m
Me
Im
Me
Me too
Anyone from 2024 batch class 11th ?🌿
Me
Yup
Yes
Me
mole concept was always confusing sir and school teachers made it more confusing but you are very crystal clear on these terms
Thanks sir for this big help
🎉😢
Yes
Yes absolutely right
Yes
*A small tip for viewers*
*Who just started this video , I request* *them to watch the complete video*
*guys I was struggling with this concept* *from few days and many of* *our class students have already done* *this in their foundation courses*
*And this is the best video I found in utube and this far better than the rest*
Seriously...same happened with me
Yes ,you are correct ☺️
@@friakii legit same
I studied mole concept very well in 9th ngl , our coaching teacher had done b tech from iit roorkee and he taught us many things of 11th like molarity , molality , formality , normality and advanced bohr model which contains epsilon not 😅 . I m in 10th and i didnt remeber much about that 1/4π Epsilon not ×ze×e/r² ...... , It was very tough for me so i left most of the part .......
Also 1st time when i went in my coaching (vmc) in 8th class , i was so damn confused that what was sir teaching , that was far away from my syllabus and i learned that in 10th .......... , It was ion electron method of solving redox reaction , yeah i learned in 10th 😬 .
I have also studied pH calculation , basics of log concept which is necessary for finding pH and few small small concepts of 11th , idk why but i only like chemistry out of the 3
Sir
i have newer seen an explanation like this
no time wasting
great explaination
perfect examples
I really like your video
and i have shared this video to all my friends to help them toooo.....
again
thankyou sir
Sir u are great God bless u
Are u alive ?
🙂
Guys!!! Note:the question of calculate mass of hydrogen atom present in 32 g of methane ?? question sir said answer has 4moles but the right answer is 8 moles becoz 2 moles of methane give 2*4=8moles
Who is here for 2024-2025 😅 batch students for basics of 11th
mee
@@justsomeoneukxx good
@@_h4_harshit mhmm
Humm hai
@@utkarshninawe97 👍🏻
Ek like toh banta hain Dil se ❤️He is working hard only for us . Thank you sir😊❤️
The only difference between normal teachers and him is, they want to finish the syllabus and this guy wants to finish all the doubts of Students 🤘🤘.
Hats off sir.
Hey , are u from kolhapur ( MH )
Yes u are right
@@dr.samruddhimane1377 ya how did you know
Must watch
ua-cam.com/video/4RalnFyobFc/v-deo.html
Help new creators to grow!
I'm a candidate of grade 9th . I watch his videos to find various numericals with sol.( to examine myself).. Being a JEE ASPIRANT ,I watch the topics of 11th . After watching these videos , I would like to say , " Some teachers must follow him to be an ideal teacher. From academical and ethical aspects, He is one of the best instances." Keep watching these engrossing classes.
Hey bro wanna contact u i am dropper preparing for neet
Broo Mene bhi 9th me hi ye padha tha now i'm in 10th Nd Esme chemistry me kuch khaas nhi Thaa sb complete kr liaa Ab 11th ka basic strong kar rhe hain (Maja ata hai cheme. padhne me)
Who became 😲😲😲 after seen physics wallah in gajani look😉
😂😂🤣
Gandhi look
@Ram Kumar bruh he isn't disrespecting 🙂🔪
Don't waste your time reading comments
Hope this helps u.... 😀
Damn it helps
It does thnx
@@gaurikaushal7331 hi
Thanks for the reminder bitch
@@ashishjoshi2277 uufff
THIS MAN REALLY GOT SOME TALENT
SIR 23:24 yaha pe apne sirf 1 mole of ch4 me 4 mole hydrogen atom liya par vaha total 2 mole hai to to wo double hoke 8 hojayega
{1mole of ch4= 4 mole of hydrogen atom} so,
{2mole of ch4= 2× 4 mope of hydrogen atom}
2 mole of ch4 will have 8g of hydrogen atom!
One thing is missing in this lecture:
Sir's motivational smile 🙄🙄
Why he is bald?
Haaa bht fast padha rhe h sir bt koi nhi😂
Ya i also feel this😐🤔
@@saumyasingh3583 me 2
Mat dheako phir thum log
Hello sir. I am an Arts student now. But I used to watch your videos back when I was in 10th standard and It had always served me well.
Mesmerised by your teaching and explanatory skills , I used to believe that you were wasting your life here on UA-cam while making the lives of thousands.
I am more than overwhelmed to see where you have reached in your life. Thank you sir for teaching us.
God bless you! ❤️
Thus video has been uploaded 6 years ago but still it is helpful for students
Salute to Alakh sir
Sir thankyou so much 💞
Love you sir
Sir you are A in lakh❤❤❤❤
Zindagi me pehli baar samjh me aaya mujhe mole concept. Thank you so much sir 🙏🏼😌
ARMYYYYYYYYYYYYYYY 💜💜💜💜💜💜💜
Armyyyyyyy☆♡
@Random Online Student No lamo😂,
Fans of bts are called as army, I can't control my laughter on ur comment 😂
Armyyyy💜💜💜💜
🌟 One of the best teacher in UA-cam. Who is helping us in lockdown. 🌟
Bro he is not one of the best he is best🤘
@@navneetkaurkahlon7095
My mistake.
I apologies, Ms. Kaur.
What do you mean by was both lockdown and him are both alive
Yes bro
Why you used was in Your comment @Jagbandhu Nayak
Still he is Helping us In Lockdown by Teaching in Alpha Series
I miss HELLOOO BACHOOOO 😅😅, btw lecture was awesome, sir makes everything crystal clear 😍😍
29:24 The answer will be 1/4 or 0.25 mole
I also salute that type of teacher which can clear my all doubts of mole concept (IIT JEE 2021)
TRUE WORTH WATCHING THESE 40 MINS....AWESOME TEACHING!!
कभी क्लास में ठीक से ध्यान दो
तो समझ आ जायेगा
कहा हो रही बेस्ट टीचिंग
@@DivyanshuSaini23 kuch logo ki teachers hi achha nahin padhati woh bore karti hai
Anamika jii I
As a 12th grade student , this video was able to clear my doubts and fill the missing cocept holes. Hats off to you sir
Btw i am a 11 grade student
iam class 12 student
@@HYDRA8145 Mee too
concept* firstly i think u have to attend ur english classes 🫶🙂
@@SliM_ShA4Y that was a mere typos....stop pointing out silly spelling errors...it makes you portray yourself as a deep-dyed Nerd
6 sal purani video dekh ke sab samjh aa gya aur kal class me 3 ghante tak kuch palle nhi pad raha tha
True that
I'm in 9th and watching this video for a strong foundation in all the concepts... I hope this will really help me in my upcoming Olympiad exams.
This will help you in class 10
Accha so you are a girl aren't you?
It's 2023 October almost 6 years old, watching this module of Alakh Sir, it's really treasury for students... I didn't understand mole concept but Alakh Sir explained it very welll... Hats Off to Sir!! ❤
Best Question is at 17:50 ..
Which can revise the whole concept from starting..
@Random Online Student Your Welcome..
Pdlo chahe khi se 😢.
Chemistry smjh aayegi yhi se .❤
I'm going offline too .😢
😂
Sirrr yeh lo best teacher award🎖️🎖️🎖️🎖️🏅🥇🏅🥇🏅🏅
@SUBSCRIBE TO PEWDIEPIE subscribe to t series
@@shalinigupta9204 subscribe to pewdiepie for original content
@@itachiuchiha6940
Unsubscribe to T series & Pewdiepue
Bhohat khoob
@@itachiuchiha6940 hello Otaku!!!
3 saal se smjh nhi aa rha tha or sir aapne 40 min m smjha diyaaa #physicswallah kamaal h
plse dont dislike his videos ..he is just awesome.
It's correct
Tera aukaat hai enkai zaisa vdo bananai ka reply me later
Hai kon tu enkai vdo ko dislike karanai wala sala@....##..mad...
Yes he’s awesome
@@ajiteshpratap8517 are bhaiya jo aap bol rahe ho vahi same chiz vo bhi bol rahe hai
aap ko kuch galat famivi ho gayi hai
U cleared my doubt why 1mole of N2 is in gram ....thanks sir..... 13:15
Sir, I think you should start private classes because you teach everything very nicely and India needs teachers like you. I am in 12 th and I got 96 in chemistry just because of you.
Priyansh Patel osm marks
Oh
Priyansh if he could teach privately..he could ..but his aim is to teach all the students. He want to help students like us.without expecting money or whatever
Congrats for 96 marks bro
@@suhanikumari6518 lol Your Exams Are Near Too Mine Also They Are 9 days away Lets Complete The Syllabus As Fast As we Can Oh i got Distracted ! shit ...
I edited the comment so no one knows what got it so many likes
sach kaha bhai
I agree
Sahi Mai coaching mai th kch nhi padhate hai
Haa
Yeah!!😂
Wow what a explanation No words to say about this fantastic lecture Thanks Sir
yes can't explain in words
Great sir. I clearly understood the basics of mole concept in class ten. Helped me wide in the boards
Thank you so so so much sir ❤ ...Your video will worth for every science student for many decades 😊 (watching in 2024 )
Even may be ho bache abhi currently pw mein Hoge
Kahu veh bhi sir ki video na dekhkte ho apne doubt clear krne ke liye 😂
सर कभी-भी physics and chemistry समझ नहीं आयी BSc भी2010 में रट के कर लिया teution nhe पढ़ पाये घर की स्थिति ठीक नहीं है लेकिन अगर हम करोड़ पति होते तो कम से कम 90% money आप पर कुर्बान कर देते क्योंकि आप का काम middle family ke students के लिए एक बरदान है you are a god for me and many poor students 🙏🙏 लोगों को अपने जीवन में चार धाम केदारनाथ धाम बद्रीनाथ धाम साईं बाबा मंदिर जाने की इच्छा होती है लेकिन मेरी एक ही इच्छा है कि एक बार आप के face to face दर्शन हो।आप को मैंने अपनी हैसियत के अनुसार बहुत ही कम रूपए बताते भी शर्म आ रही है 50 sent kiye pata nhe aap ko mil paye ya nhe ......lv u tooo always.....❤️❤️❤️❤️
Ha Sahi he😭
😭😭😭
Isme shrm ki koi bt hi nhi h...ap jitna de skte the utna diya...aur keemat nhi shraddha bhav mayne rkhta h apne saf dil se diya bht h ❣️
Sir, apne hum jaise student ki indirect help ki hai.... Apne to hmara dil jit liya...
@@aditi1467 right
5 years old video but the comment section is still active this is the power of our alakh sir..❤️🔥🔥
Respect+++++
Shi baat
today , during the time of corona pandemic , it is really hard to learn from virtual classes as teachers are orally explaining us the topics , making it more difficult to understand but after a month from April , today @8/5/20 I am confident enough that I am going to crack the board exams bcoz your teaching is amazing , simple and understandable which makes concepts easier and interesting...thank you sir for all your hard work to teach us
crack board examni jee ya neet kr
@@anubhavmishra8643 yeah sure
❤️
Hey I hope you are successful now
Hy... ..😮
Disclaimer: Watch thiss only if you want to be perfect starting from zero.😭
9:25..fan turned on and sir started teaching faster so that we ignore the noise of fan...THAT'S A GREAT TEACHER💝💝💝💝
Who's here to revise these concepts in 2022??😁
High respect to alakh sir. Aapke liye dil se izzat aati h ❤️. You are amazing as a person also 🔥🔥🔥.
Here
I'm trying to learn from scratch, it's confusing af need a lot of practice but I'm sure i can do it. Any tips how to get better?
Me 😂
Ha brother Arjuna jee batch sey hu
Sir 1% talent of explanation and other 99%of your hardwork makes you genius for me really great lecture of yours thanks to you sir.
Everyone please Watch this video on youtube-examination in life never give up mufti menk by merciful servant
I am in 9th but i want to know extra knowledge about mole concept 😅
मेरे पास शब्द नहीं है। इन महान शिक्षक के लिए मुझे सबसे अच्छा तब लगा जब इन्होंने पंखे को खोला इसका तात्पर्य यह है कि इतने समय से गर्मी में पढ़ा रहे थे। आप को चरण स्पर्श है 🙏🏿🙏🏿🙏🏿✨✨✨✨
2 teachers I love most:
1. Anand kumar
2. Alakh pandey
U don't know reality of anand kumar
@@najmussehar11 u all think anand kumar to be great, me too but reality Is something else, I found out the truth
Harsh anand tell the truth then
Thank you sir for this wonderful explanation, now I am damn sure to tackle any question based on mole concept and this is only because of you sir.
mm
Straight to the point... everything covered Alakh Sir for a reason💯💖
The best video on Mole concept 👌. I watch this video during lockdown. You deserve more and more subscribers . Now the topic is clear. You worked very hard for us. Thanks a bunch sir 🙂.
Watch my video on mole concept
ua-cam.com/video/LH9Gop4-SU/v-deo.html
If u really want to get clarity on the concept!!!
Watch this video on youtube-Examination in life never give up mufti menk by merciful servant
At 24:00
Sir,
H4 molecule ke 2 mole hai to H atom ke 2x4=8 moles honge.
Aapne 4 moles of H likha hai and 8 moles of H hai to total number of H atoms are 8 x 6.023 x 10^23
and that's why total mass of 8 moles of H atoms will be 8 x 6.023 x 10^23 amu.
ek hydrogen atom ka atomic mass 1 hota hai
Yes I was thinking the same there are 2 moles
One atomic mass value of hydrogen one hi hoti hai.. if the value would be H2 then 2 moles value hoti.. but yaha pr H4 Hai.. it means = 1×4 = 4
haan bro mai bhi yehi sochra tha 🌹
fir mai google pe gaya and wapas aaya and aapka comment dekha...thanks
Ya exactly kyuki methane ka mole 2 hai toh 1 kyu liya
Im from 23-24 batch and this is the best explaination of mole concept I have ever found 🤍🤍
18-19 batch student here.. you really helped me to score good in physics in my 10th ICSE BOARDS!! THANK YOU SO MUCH SIR!!
Sir in 24:51 can't we do like this...
In CH4 we have 4 moles of hydrogen
So by formula no.of moles=mass given / molar mass
So in CH4 the given mass is 32 grams
4 moles = 32 g / X
X= 32/4 = 8
Sorry if I did wrong....btw I love Ur teaching sir 🙏
u r right
U r ri8... 8g of hydrogen hoga woh....
I think aise karna sahi nahi hai kyuki 32g me 1 mole C aur 4 moles of H atoms ...so aisa nhi likh sakte ki....
no of moles = given mass / molar masss
Kyuki given mass total CH4 ka h na ki only H4 ka !!
I hope it helps !!!
No we can't do that because in the question it's telling to find mass of hydrogen only, while mass of the whole ch4 is 32 g.
Ur right