Kon kon class 10 th se ha 🙋♂️ ( as a senior I would suggest you all please study this chapter seriously otherwise you will feel difficulty in class 10 th )
Important topics timestamps : 4:59 Law of conservation of mass 11:50 law of constant proportion 15:26 Dalton's atomic theory 22:53 Drawbacks of Dalton's atomic theory 25:10 Atoms 38:00 10 Elements name 39:58 10 Elements name 54:06 How do atoms exist 59:22 Molecules of a compound 57:55 Atomicity 01:01:58 Molecular mass 01:06:37 Formula unit mass 01:08:16 Ions 01:15:48 Why do atoms combine? 01:17:49 Valency 01:18:55 Chemical formulae 1:35:29 mole concept
Newton's fourth law- Every book continues to be at rest and covered with dust until and unless internal or external exams appears. The speed of page turning is directly proportional to the syllabus to be covered , but tension remains constant😀😀😀
00:00 - Introduction 02:30 - History of atoms and molecules 04:50 - Laws of chemical combinations 11:14 - Dalton’s atomic theory 19:33 - Atoms 22:39 - Symbols of elements 35:57 - Atomic mass 47:01 - How do atoms exist? 48:32 - Molecules 58:02 - Molecular mass 1:02:46 - Formula unit mass 1:07:27 - Ions and Valency 1:15:14 - Writing chemical formula 1:19:48 - Question practice 1:34:39 - Thank You Bacchon
There is a trick High (Hydrogen) Heel(Helium) Liye(lithium) Bina( Beryllium) Bua( Boron) Chachi (Carbon) Nani (Nitrogen) Or (Oxygen) Fufa( Fluorine) Naachenge( Neon)
Ma'am ase 1.5 hours tak board meh likhke aur lecture dena itna easy nhi hain. Thank you ma'am for your support. 💫👍🏻 And my grateful respect to physics wallah group forever❤🎉
Molecular mass of Al2(SO4)3 =342 u Molecular mass of C6H12O6=180 u Molecular mass of CuSO4.5H2O =249.5 u These are the answers of molucular masses at the time 1:05:39 ..... You are the best teacher for chemistry thank you mam
Newton 5th law state that the exam is directly proportional to fear and stress in mind and inversely proportional to time taken to complete full syllabus in one night
Ma'am why monoatoms are considered as molecules. We know that molecules is generally a group of two or more atoms but monoatoms are formed of single atoms ?
Amazing, I'm currently 12th appearing students preparing for jee, mai apne kuch chote bhai behno ko kuch batana chahunga jinko padhai me bilkul intrest nahi hai aur wo soch rahe hai ki 10th se padhunga ya 11th se... let me tell you my story, mujhe chemistry se kaafi nafrat tha aur phir kya mai 9th, 10th aur 11th me bilkul v chemistry nahi padha, by the way mujhe study me bilkul v intrest nahi tha and that's why mai padhna jaroori nahi samjha, mujhe technology me kaafi intrest tha aur maine different different programming language (python, bash, sql) and web designing sikha, mujhe padhai likhai sab bakwas lagta tha aur mai sochta tha koi jugad karke 12th kar hi lunga phir college life but dost mujhe bahot late realise hua ki mai galt track pe tha aur mujhe kaafi regret hai is chiz ka ki mai apna 9th,10th and 11th waste kar diya, there is no substitute agar aaj nahi mehnat karoge to kavi na kavi karna hi padega aur jab karna padega tab bahot jayada karna padega aur ush time tumhare pass koi aur option nahi hoga like 9th, 10th me nahi to 11th 12th me aur agar yaha v nahi kia to.... Kuch v nahi keh sakta🙂 Wish you all the best guy's, fod ke rakh do 😊😊😊
@@anupamkumar6674 suppose you are going to buy an apple but you cut a watermelon into 16 pieces to weight an apple.. Is there any sense behind this.... Think about it 😅
V good mam 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍 11:45
Every time I ever have exam I waste the whole year and study at last minute but that leads to a lot of stress so this time Im determined not to do so even though I'm still wasting time but I hope I get better this time
Newton's fourth law of motion :- Every book continues to be in state of rest and covered with dust until and unless internal and external exam appears and the speed of the page turning is directly proportional to the syllabus to be covered and tension in mind remain constant.
1:06:02 answers are:- 1). molecular mass of Al2(So4)3=342. 2). molecular mass of C6 H12 O6=180. 3). molecular mass of CuSo4•5H2O= 249.5 Thank you ma'am aapne Jo padaya Sara samaj aagya thank you ma'am ❤️☺️☺️
Thank you sooo soo soo much ma'am, sirf aapke itne acche explanation se mujhe pura chapter samjh Agaya hai!! abh agar classes miss bhi ho gaya to mujhe dar nahi hai 😭❤️ sahi kaha "nothing is impossible if you put your mind and heart into it"
mam ap log hamre liye 1:50 hour se lagatar padhati hai vo bhi non stop...ap ko or pw ke sabhi teacher ko meri taraf se a very big salute....THANKU PW..🙂🙂🙂💯💯🙏🙏
1:30:15 maaaam still didn't understand, looks like this one is made up in scientist mind not proved. if H-atom and O-atom mass is different then wat it is??
Teaching nai, ek business hai ye. Reels banaa rahe hote hai ye log. Hume kya karna teachers ke reels ya behind the scenes dekhke? Lakin ye log to post karte hai. Bachu ko padhaai aur teachers ke naam pe reels dikhwaate hai aur followers banaate hai.
Newton's fourth law - Every book continues to be at rest and covered with dust until and unless any internal or external exam appears The speed of page turning is directly or to the syllabus covered but tension remains same
1:45:30 Thank you Ma'am for this wonderful Explation of this chapter, it seem very difficult to me but after watching this lecture and making notes of it, i really said to the fear of this chapter "Tata byee byee" 😂😂 you are just a charming Star ⭐ for us ❤ i love you ma'am 💙 you are a gem 💎 may god Bless you with lots and lots of Happiness 💞 in the world 🌎 your parents are very lucky to have a daughter like you The Sanya Nayar!! And we are lucky too ❤ to got a metor, educator, teacher and Dost 🤜 like you❤ love youhh Sanya Didi 💙💙
I have watched so many videos of this chapter but no one has explained it as easy as you did 🎉🎉 You have always made chemistry easiest for me and thank you so much for that I can never thank you in words 🙏🏻
All the foreign philosopher came to Bharat in 17-18 CE and just read our philosopher words which they had written in pages and then translate in his own language 😅
Nice video mam as a senior I suggest you first watch this video then open class 11th ncert some basic concepts of chemistry you will become a chemistry wizard and lots of love to physics wallah team❤
I am here after class 12th to revise it, and beleive me, Mam taught it better than every teacher i found whether in classroom or coaching, Thank you Mam Earlier I found this chapter and chemistry boring in school, but today it felt too interesting,, the way mam taught this chapter 🔥
the examples you take to explain the concept are just epic!!!!!! i mean from where do u get these examples ............. ur examples make the topic fun especially the palak paneer one :)
Foundation Class 9th Sprint Batch 👉 bit.ly/3VS4OrG
📲PW App Link - bit.ly/YTAI_foundation
🌐PW Website - www.pw.live
Mam huma notes kaha milata ha
thankyuu sanya mam
@@arjunagarwal881 oo
@@arjunagarwal881 o
@@arjunagarwal881 oo
Kon kon class 10 th se ha 🙋♂️ ( as a senior I would suggest you all please study this chapter seriously otherwise you will feel difficulty in class 10 th )
💯💯💯🔥🔥🔥👍
Thank you for suggesting...💙
Thanks 🙏 bro
Thanks bro..!
@@khushiscreation5083 hyy
Wonderful Explanation 🔥 🔥
Helo
I appreciate👏👏👏 the whole EDUHAP team to praise the hard work of teachers of any other institute. It shows your simplicity ✨️ .
Big fan sir
@@AK_ADiTYa Thank you ! Thank you! 😅
@EDUHAP hi sir ❤
Important topics timestamps :
4:59 Law of conservation of mass
11:50 law of constant proportion
15:26 Dalton's atomic theory
22:53 Drawbacks of Dalton's atomic theory
25:10 Atoms
38:00 10 Elements name
39:58 10 Elements name
54:06 How do atoms exist
59:22 Molecules of a compound
57:55 Atomicity
01:01:58 Molecular mass
01:06:37 Formula unit mass
01:08:16 Ions
01:15:48 Why do atoms combine?
01:17:49 Valency
01:18:55 Chemical formulae
1:35:29 mole concept
Thank you❤
thanks
@@ATOMIC-22 welcome ☺️
Thanks
Thanks
School ka explanation 🤡
Pw ka explanation 😎
Yes anshika i love you toooooo
yes
😂@@nandaniraj8150
Yes same yar
😎😎😎😎
Newton's fourth law-
Every book continues to be at rest and covered with dust until and unless internal or external exams appears.
The speed of page turning is directly proportional to the syllabus to be covered , but tension remains constant😀😀😀
Are bhai 🤣
Bhai ne puri physics laga di 🤣🤣
Bruh this law is running from when i was 5
Kha se chapa
Not newton's
But student's law😂
Exam is near😢
Nothing is clear😒
No need to fear😅
Because PW is here🎉❤
PW means pending work
Wahhhh wahhhh
@@Deadshot969 nahi bhai porn videos..
Wahh kya shayari hai yaar
@@Deadshot969 physics wallah ❤
00:00 - Introduction
02:30 - History of atoms and molecules
04:50 - Laws of chemical combinations
11:14 - Dalton’s atomic theory
19:33 - Atoms
22:39 - Symbols of elements
35:57 - Atomic mass
47:01 - How do atoms exist?
48:32 - Molecules
58:02 - Molecular mass
1:02:46 - Formula unit mass
1:07:27 - Ions and Valency
1:15:14 - Writing chemical formula
1:19:48 - Question practice
1:34:39 - Thank You Bacchon
Lol thanks it's appreciated
@@niveditaaswal3382 fuvj
Why this type of teachers and this type of energy and efforts our school teachers put in explaining us!!! 💔🥲..
Same 💔
👇🏻
There is a trick
High (Hydrogen)
Heel(Helium)
Liye(lithium)
Bina( Beryllium)
Bua( Boron)
Chachi (Carbon)
Nani (Nitrogen)
Or (Oxygen)
Fufa( Fluorine)
Naachenge( Neon)
😅
u can listen to periodic song to memorize way easy
search it on youtube
Wow nice trick 😅
Please bhai next 20 elements ka bhi bata do trick 🙏🙏🙏🙏🙏🙏🙏🙏
exam mein trick nhi yaad rhti
Newton 5th law
The rate of increase of tension is directly proportional to the incoming date of exams 😂
Not directly it should be inversely proportional 🤣🤣 kyoki jaise - jaise din kam hote hai vaise - vaise tension badhti hai
😂
@@Cookie.552 baat to sahi hai 🤣
2:10 time par maam ke hand sign wese tudhe relaxing hai
if u know what I mean Boys
😂😂😂😂
1:05:34 molecular mass of Al2(So4)3
=2*27+3(1*32+4*16)
=54+3(32+64)
=54+3*96
=54+288
=342 a.m.u
Kis kisko school me samjha nhi aata😅👇
Bhai meri teacher toh padahti hi ni toh samj kaise aayega
Mujhe😢
Jo ye video dekh rahe ho ga usko
@@SaklaniAadi-6996- usko nhi unko 😅
Muje
Ma'am ase 1.5 hours tak board meh likhke aur lecture dena itna easy nhi hain.
Thank you ma'am for your support. 💫👍🏻
And my grateful respect to physics wallah group forever❤🎉
❤❤❤
She deserve "Queen Of Chemistry " .
Plz vote for She
*Those who are agree * 😊😊
Salute to your Eng. grammar!
@@sumanlata1005 two birds with one stone !
Good 👍🏻
Unlike others , who just makes fun , you left a wonderful comment .
@@Dragon_Ballz_Aryan. Thankyou 🙏🏻
no i dont
What a grammar bruh !!😂😂
Exam is near 😢
Nothing is clear 😒
We need to fear 😨
But P.W is here..🥳🎉
@ShaukatChokave wah wah 😭
Molecular mass of Al2(SO4)3 =342 u
Molecular mass of C6H12O6=180 u
Molecular mass of CuSO4.5H2O =249.5 u
These are the answers of molucular masses at the time 1:05:39 .....
You are the best teacher for chemistry thank you mam
Last me 239.5u hoga
Bhai mujhe calculate the no. Of atoms in 0.2 mole of sodium (Na)
Answer bata dena yrr
@@watson1853 12.044×1022
Mai nhi bataunga 😂
This lecture was.....
So beautiful
So Elegant
Just fitting like a wow
Just fitting like a wow
Thanku so much mam for this lecture ❤️
Yes 😂 but nice lecture
@@Anjali__Singh41insta id ???
😂😂
Just not fitting just looking
@@Anjali__Singh41hii
Great teaching.
I cleared all my doubts.
Sanya ma'am is queen of chemistry
Yes🎉
😢
Yes
1:02:00 Sb smjh Aagaya
ATOM ⚛ + ⚛ MOLECULE !!!
Thanks 😊
Molecular mass of Al2(SO4)3 = 342 units.
Molecular mass of C6H12O6 = 180 units.
Molecular mass of CuSo4•5H2O = 249 units 1:06:44
Good
Bhai kese aaya
249.5u ans
bro it should be 249.5 a.m.u
Newton 5th law state that the exam is directly proportional to fear and stress in mind and inversely proportional to time taken to complete full syllabus in one night
Newton was the first person who cannot catch the apple.😂😂😂😂😅
Kon kon class 9 me hai agar app class 9 me ho to (please study this chapter seriously otherwise you fell very difficulty in class 10) ok ! 😊
Nahi Bhai
You are right 👍 bro
Bro I am in class 9 and I complete this chapter
Right master sahab
Me
Ma'am why monoatoms are considered as molecules. We know that molecules is generally a group of two or more atoms but monoatoms are formed of single atoms ?
Best Explanation of Chemistry😃😄 Finally, I am 😊 Satisfied
Amazing, I'm currently 12th appearing students preparing for jee, mai apne kuch chote bhai behno ko kuch batana chahunga jinko padhai me bilkul intrest nahi hai aur wo soch rahe hai ki 10th se padhunga ya 11th se... let me tell you my story, mujhe chemistry se kaafi nafrat tha aur phir kya mai 9th, 10th aur 11th me bilkul v chemistry nahi padha, by the way mujhe study me bilkul v intrest nahi tha and that's why mai padhna jaroori nahi samjha, mujhe technology me kaafi intrest tha aur maine different different programming language (python, bash, sql) and web designing sikha, mujhe padhai likhai sab bakwas lagta tha aur mai sochta tha koi jugad karke 12th kar hi lunga phir college life but dost mujhe bahot late realise hua ki mai galt track pe tha aur mujhe kaafi regret hai is chiz ka ki mai apna 9th,10th and 11th waste kar diya, there is no substitute agar aaj nahi mehnat karoge to kavi na kavi karna hi padega aur jab karna padega tab bahot jayada karna padega aur ush time tumhare pass koi aur option nahi hoga like 9th, 10th me nahi to 11th 12th me aur agar yaha v nahi kia to.... Kuch v nahi keh sakta🙂 Wish you all the best guy's, fod ke rakh do 😊😊😊
Ok you are telling true
Aaj se man lagakar padhai krunga❤❤❤
@@Glideeducationlearningpoint wish you all the best champ👍
Abh m dhyan s pdugye bro 👍👍
Thanks bhaiya
❤❤
A watermelon🍉 is waste for an apple🍎....46:17 😂😂
How???
@@anupamkumar6674 suppose you are going to buy an apple but you cut a watermelon into 16 pieces to weight an apple.. Is there any sense behind this.... Think about it 😅
@@praddepkumardistrictco-ord5696 Unhone bas samjhane keliye example rakha tha !
V good mam 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍 11:45
1:29:50 ma'am your dance is very good 😊♥️
1:06:42
Molecular mass (Answer)
Aluminum sulphate = 342 u
Glucose =180 u
Copper sulphate = 249.5 u
😊😊😊😊😊😊
Thank you mam 🧿
Bruh
I got the first two same instead of the last one , Can you please help with that?
❤
all right😊
@@artandcraftdrawingacademy2554🎉
Great salute to ma'ams energy, 2 ghante tk padhana etna aasaan thodi hai and full josh me padhaya thank you soo much ma'am ✨️✨️
😝✌👋🏻
All done😊but are you living 15min faster😮
Wish all of you happy Diwali 🎇🎇🎇🪔🪔🪔🪔🪔🪔🪔🎇🎇🎇🎇🎇🪔🪔🪔🎇🎇🎇🎇🪔🪔🪔🪔🎇🎇🎇🪔🪔🪔🎇🎇🎇🎇🎇🪔🪔🪔🪔🪔🪔🪔🪔🪔🪔🎉🎉🎉🎉🎉🎉🎉🎉😢🎉😅😊😊😊😊😊😊😊😊😊
all schools should have teachers like this👏👏
Tere school me nahi hain kya?????
Mara school mai kas aysi mam ho ti to sara class kuchi sa pagal ho jata
2:00 ❤very nice
Fishing
suddenly I have started loving chemistry. if only our teachers could put this much effort in explaining us in a interesting manner.
Truuu!🌝
Manner ki baat kr rha hai ya kitni Sundar hai isilye?!
@@breadtoast2772 yeah she's pretty. but her explanation is so good.
@@278a.sayantaniganguly4 yup... ✨
yea...:)
First time watched a pw lecture and trust me everything is crystal clear 😃
Just follow them they r the best❤
@@iyena_0786yeah
Every time I ever have exam I waste the whole year and study at last minute but that leads to a lot of stress so this time Im determined not to do so even though I'm still wasting time but I hope I get better this time
Sameeeee
Hii
1:05:36 The answer is 342
Ty ma'am for ur explanation that rlly helps us
🔥🔥🔥🔥🔥maja aa gya mam it's the best platform to study by my experience
😊
Newton's fourth law of motion :-
Every book continues to be in state of rest and covered with dust until and unless internal and external exam appears and the speed of the page turning is directly proportional to the syllabus to be covered and tension in mind remain constant.
😂😂😂😂😂
😅😅
😅😂
Very good
Aap kaha the
1:06:02 answers are:-
1). molecular mass of Al2(So4)3=342.
2). molecular mass of C6 H12 O6=180.
3). molecular mass of CuSo4•5H2O= 249.5
Thank you ma'am aapne Jo padaya Sara samaj aagya thank you ma'am ❤️☺️☺️
Aapne 2 glt kiya aur 1 bhi
The correct is
1)96u
2)170u
3)249.5u
😊
Saving me one day before exams. Just me and my four cups of coffee against the world
1:45:29 crystal clear mam you made this chapter a piece of cake for all the students those who were afraid of Chemistry
True
Calculations of molecular mass
Answer:
1st = 262
2nd=180
3rd=249.5
Thank you mam for this amazing video, really you are the queen 👸 of chemistry 😊
Bhai 1st ka 342 hai
Yes bro wrong 1 ans 342 is correct answer
👑👑💍💍💍💍🇮🇳💞❤️💋💘💝🫦👄💪🫶👊👍🥰😍
💍💍💍👑👑👑
Hii
No words to express your lectures mam❤🥹
Bhagh
Thank you sooo soo soo much ma'am, sirf aapke itne acche explanation se mujhe pura chapter samjh Agaya hai!! abh agar classes miss bhi ho gaya to mujhe dar nahi hai 😭❤️ sahi kaha "nothing is impossible if you put your mind and heart into it"
mam ap log hamre liye 1:50 hour se lagatar padhati hai vo bhi non stop...ap ko or pw ke sabhi teacher ko meri taraf se a very big salute....THANKU PW..🙂🙂🙂💯💯🙏🙏
Are nhi bhai inhone edit kiya hota hai vedio ko break le le ke padhate hai
Neev batch me live hota hai na.... Wahi ka class hsi edit hua hai short krne ke liye
.. 😐
This chapter of class 9th is base of chemistry 🔥🔥👇
Agreed , each and everything continues in 11th
worthless😒😒
Mam we can't divide an atom into 12 pieces so how can we relate the massses of other atoms with the 1/12th part of a C-12 isotope.
Yea, but we can divide the mass of C-12 and therefore assume 1 amu
No bro it means c14 has 14 atoms
1:30:15 maaaam still didn't understand, looks like this one is made up in scientist mind not proved. if H-atom and O-atom mass is different then wat it is??
MOLECULAR MASS OF AL2(SO4)3 = 342u
MOLECULAR MASS OF C6H12O6 = 180u
MOLECULAR MASS OF CUSO4•5H2O = 249.5u
Bro u is used with atomic mass but in molecular mass, gram is used
But your mass is correctly right 👍🎉
Nah man
Molecular mass is also written as u
Gram is used in gram atomic or gram molecular mass
I believe that PW Foundation will create history with their best teachers❤❤
It can be
Teaching nai, ek business hai ye. Reels banaa rahe hote hai ye log. Hume kya karna teachers ke reels ya behind the scenes dekhke? Lakin ye log to post karte hai. Bachu ko padhaai aur teachers ke naam pe reels dikhwaate hai aur followers banaate hai.
Ma'am at 6:11 minuets, H2+O2 won' t make H2O2( Hydrgen peroxide)??
Padia ka 14
Yes she had to write h2 and O
Chup naali
@@deepikadeepika4595
can anyone tell me in 1:39:57 why is mole written as n ? pls reply
Thank you mam for this amazing lecture,my all doubts are clear ❤🙏🙏❤
Molecular mass =
Al2(SO4)3=342u
C6H12O6=180u
CuSO4.5H2O=249.5u
Same mam is like the best in youtube
@@THEGREYZONE4729 mera 251.5u aaya h
Bro wrong answer is c6h12o6 =156
Bro C6H12C6 = 156u 🙂
@@Dushyantrajput9 nhi answer 180 he hai
Mam I live your teaching skill😊😊
19:47
I live 😂😂😂
Newton's fourth law -
Every book continues to be at rest and covered with dust until and unless any internal or external exam appears
The speed of page turning is directly or to the syllabus covered but tension remains same
Copied😶
Kitna copy maro ge bhai
@@SMgamers1243Right, There doing this for likess
Hello 👋
I hate this law. Like literally everyone's copying it
8:34 ma'am suppose reaction karne ke baad product me se koi gas release hogayi to us ka mass to Kam hoja na chahiye naa?
1:06:35
i) 342u
ii) 180u
iii) 249.5u
Thanks ma'am nice explanation 😊
@@firdousfatema5052 I'm not Aman 🗿
i)5442 ii)180 iii)249.5
Yeh kase bhai
18:10 the way she called us baccha 😍😘😩❤
😂
😂 13:16 😊
Molecular Mass of Al2(SO4)3 = 342
Molecular Mass of C6H12O6 = 180
Molecular Mass of CuSO4.5H2O = 249.5
correct hai
How?
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All are correct
Mam at 31:00 the position of symbol of phosphorus and sulphur is changed 🤔🤔
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1:45:30
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1:04:34 Molecular Masses
(i) 342u
(ii) 180u
(iii) 249.5 u
You are great teacher of chemistry ❤❤❤❤🎉🎉🎉🎉🎉🎉😊😊😊😊😊😊😊🎉🎉🎉
Molecular mass of Al2(SO4)3= 342u.
Molecular mass of C6H12O6 =180u.
Molecular mass of CuSO4.5H2O=249.5u
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3rd wale ka Mera 244.5 u aa Raha hai
Its 449.5 u only bro
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All the foreign philosopher came to Bharat in 17-18 CE and just read our philosopher words which they had written in pages and then translate in his own language 😅
53.51 mam you said that always the mass will be in whole no. like 12,14 but chlorine have 35.5 how
😊
exceptions in chemistry
She said it combines in whole number's proportion...
*Mam you are a real Queen of chemistry, loved your method of teaching*
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Dalton's atomic symbol me Mercedes wala sign phosphorus ka hai sulphur ka nhi ma'am 30:06
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1:40:02 1/8
And
No of atoms in 0.2 mole of Na =
1.2044 × 10²³
Thank god someone answered this question I was looking to check whether mine is correct or not
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53:38 mam hydrogen ka atomic mass 2 hona chahiye tabhi to hum hydrogen:oxygen --2:16 -- 1:8 -- water -- bana pate hain
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Molecular mass of Al2( SO4)3 = 342 units ♥️
Molecular mass of C6H12O6=180 units❤
Molecular mass of CuSO4.5H2O = 249.5 units ❤
1:06:44
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Fire🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥 1:38:34