good question. it actually doesn't matter which variable is on the top and which is on the bottom, just as long as it's the same in both cases. for example, 4/2 = 2/1, and i can flip both and say 2/4 = 1/2. so you can write it as V1/n1 = V2/n2, or n1/V1 = n2/V2, whichever you like better.
In calculating a sample problem I got two different answers when the variables were flipped. Everywhere I look V is on top, n on the bottom. Can you help in explaining why it doesn’t matter? Thank you very much.
You're awesome. Your step by step methods is so clear and understandable. I wish you were my teacher. I love Chem but with all these gas laws its very confusing. Watching your videos helps so much to clarify confusing parts.
Sir, thank you for your hard work. I'm new to the channel and never really looked up teaching videos on you-tube. You are my first and have helped me better understand chemistry. I have been struggling a'lot in lecture, i find this video where i can go back and look over your work and hear your words again a great advantage to completely learning this subject. again thank you and keep up the work.
need to say a very big thank you for your clarity and delivery pace, you will be my saving grace in understanding bioscience, haven't found anyone that can teach a newcomer to this field as good as yourself thanks karen
you are literally a lifesaver i have my finals in a few hours my chem teacher is pretty much useless and his way of teaching is just so unclear i get confused everytime but when i watched your videos on the topic it is alot easier to understand thank you!
Hi Tyler, You didn't need to convert mass to mole then back. Equation works as mass and number of moles are proportional (linear relationship) to each other. Great video :)
I am a college student and these videos are the only reason I'm getting an A. You work magic! Thank you so much for all the time and effort you have put into your teaching and sharing it with us! :)
I will attend my test tomorrow and I just watched your vid and it's so helpful. Even this video is 9 years ago but it's still functional to us. Thank you for your kindness 💜
I am studying for a Chemistry final and there are some things I just didn't understand. Then I came across your videos and they really do help! Thank you for taking the time out of your day to make these videos!
Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.
I can't believe you made me understand in just minutes what was making me go crazy just a couple of hours ago. Why didn't I find you sooner?!! ... I think i love you.
Can you do short method instead of long method since the question is how many grams? Cross multiplication is enough, so that we can get exact value of grams.
You are awesome. You so clearly and methodically explain the concepts without sounding condescending or treating the viewer like a child. Excellent video!
I'm preparing for IIT-JEE and you're videos serve me more conceptual clarity than anyone I've been tutored by. You are just amazing. I would worship you if you were my teacher here.Thank you.
your drawing of Balloon is good. I can't draw like this. Anyway you are extremely awesome teacher. The coolest teacher ever. I enjoy watching your videos and guess what; it teaches me too. You are far better than any other teacher. I really love you for your teaching. 😊🤩🤗
I deeply appreciate you Tyler. Its been such a blessing to have encountered your channel. You make college seem so much easier, hell you make premed seem like a piece of cake with your god-like teaching abilities. You have this magic in you as if you are meant to teach. I get so stressed with chemistry and you literally make all my depression vanish after a couple videos. I LOVE YOU SO MUCH. I APPRECIATE YOU SO MUCH. Your teaching style is so genuine and relatable, its honestly mindblowing. I would sell my soul to satan for you to be my chem tutor. i appreciate you so much. like a lot. god youre amazing. sending all my love your way. keep doing what your doing. YOURE MAKING A DIFFERENCE IN THIS WORLD, TRUST ME.
According to Avogadro's law, at STP, 1 mole of gas occupies 22.4 L. so 48 L of oxygen should have 48/22.4 which is equal to 2.14 moles, isn't it? Please clarify
I love this guy so much, he explained everything so easy. If the answer should be in grams and is not necessarily show working, you don’t have to convert to grams. It would give you same answer.
What if we take the same amount of 2 gases in containers of different volume under same pressure and temp. conditions?We know that gases take up the volume of their container,so even we have same amount of gases we will have different volumes.
the 32.0 has 2 significant figures, not 3. The 0 after the decimal isnt significant unless there are numbers behind it. Nitpicking, i know. But yeah while you were solving it the first time around, i decided to not convert it to moles and solve it. Worked fine. then i converted it to moles and still worked. I like how you take time to check to see everything cancels out and your units are correct.
Incorrect. All trailing numbers (including zero) after a decimal point are significant. If you're going to be presumptuous enough to try correcting someone who actually teaches chemistry, it's probably a good idea to also make sure you know what you're talking about.
Hello I am from India 🇮🇳 after seeing this video I can understand whole concept. It's okay it is a 9years old video but it is legendary and you r also a legendary teacher
I just love your videos. you are in my top list.......NO ONE CAN TAKE YOUR POSITION! Everyday i see your videos and i just love them. you are the one who introduced me in the world of chemistry :) dont stop making videos !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Finally, I can get rid of my high school chem book that full of fancy terms and equations, which takes me over 1 hr just to read one damn page . Thank you so much .
So true; I can't actually read a school text book due to a little problem i have... e_e But this guy's video is saving me from so much suffering. I really don't know what I'd do in my last few years of school without this kind of help. Amazing explanation, relatively straight forward and portrays it in a simple way to make it look easy and not intimidate students.
You can absolutely keep working with mass instead of moles since 32 g/mol is a common factor on both sides of the ecuation and just cancels out, as evidenced by how your first step was to divide by 32 and your last step was to multiply by 32. By doing this, though, the error is conceptual, since n usually denotes moles, so saying n = 50g is wrong from a nomenclature standpoint, but mathematically it works. It's important to know WHY it works, though, because as simple as it looks in this example, other problems are much harder and you gotta keep track of what your n is, what your m is, what your molar mass is, and how they are all related.
Brilliant, as all your videos are! Thank you also for telling us what are the common errors as well. You have a hand in touching every life that every future doctor or nurse saves because you helped them succeed!
It wasn't really necessary to convert to moles haha. I used grams to solve: 79L x 50.0g/48L and got 82ish which is probably a little more accurate since the rounding with moles is skipped. It doesn't really matter I guess though. It's good mole conversion practice anyway haha XD
this vid is fab and actually man I'm not scamming u dont worry, in case u did bc i just liked and commented on 2 other vids rn, Im just an IG student an May June trial is approaching and your vids were the most helpful and put in mind your very helpful for more than only American diploma students
Thanks a lot for your classes. It is really interesting.i think to solve this problem easily we don't need to change to mol and then again to gram. We can simply multiply 79*50/48 and we can get the same answer in gram.
I need you to be my chemistry teacher at tri cities, even though your way takes a tad bit longer it's still easy to understand and I like your way. Good teaching
I was wondering why it was necessary to convert the grams to mole when noticing that there was going to be a 4% difference between the grams to liters? If there was a 4% difference at one point in the equation why should it be necessary to do a bunch of conversions of grams to moles and back to grams again?
I have just done my calculation without converting between mole and gram. I have got the same answer: 50g/48L= n/79L --> n = 82.29g. Tyler, can you please explain this? Thanks.
It works without converting because they are the same gas (both O2, which means they have the same conversion factor between grams and moles). I can’t imagine a situation where it would be 100% necessary to convert unless you were doing a very complex problem with chemical reactions and gas changes.
9 years later and this man is still a king
Agreed
he is not a king
he is an emperor
3 months ago and you're still a man w/taste. I see yui as your pfp✨
From which country did you belong from
Agree his video is very helpful and easy to understand
i learned an entire grade 11 gasses chemistry unit in 2.5 hours because of you... i love you
I'm in a science highschool , we have advanced chem and this is covered too
@@artlife1625 *qwjwjw punk
@@artlife1625 Punk.
good question. it actually doesn't matter which variable is on the top and which is on the bottom, just as long as it's the same in both cases. for example, 4/2 = 2/1, and i can flip both and say 2/4 = 1/2. so you can write it as V1/n1 = V2/n2, or n1/V1 = n2/V2, whichever you like better.
The only reply.
Thank you man
Thanks sooo much sir you saved my life 👍👍👍🖖🖖🖖
Thankyou you so much sir ten years later I am here to clear my concepts 🙏 I am from India 🇮🇳❤️
In calculating a sample problem I got two different answers when the variables were flipped. Everywhere I look V is on top, n on the bottom. Can you help in explaining why it doesn’t matter? Thank you very much.
i appreciate the fact that you take your time explaining every little detail! You're seriously a life saver!!
You're awesome. Your step by step methods is so clear and understandable. I wish you were my teacher. I love Chem but with all these gas laws its very confusing. Watching your videos helps so much to clarify confusing parts.
wish all my teachers were like u man!
I learn more from you in a few minutes than my teacher in a year.
your videos are far better than khan academy.
all pets suck
Ikr he makes learning fun
Don't underestimate what Mr Khan does because of what he doesn't teach, estimate him withe the teaching potential he has.
Agree, but I must say I haven't seen anything beat the math courses on Khan Academy. They're incredibly intuitive.
@@vlogsbyrow let me assume you haven't watched professor Leonard
Tyler Dewitt > Khan Academy
strongly agree
Bruh who use khan academy...boring uncles
Organic chem is a sleeping pill
@@lifelyrics5659 dont ever call him that hes my dad
Sir, thank you for your hard work. I'm new to the channel and never really looked up teaching videos on you-tube. You are my first and have helped me better understand chemistry. I have been struggling a'lot in lecture, i find this video where i can go back and look over your work and hear your words again a great advantage to completely learning this subject. again thank you and keep up the work.
Great explanation no doubt
binge watching gas video for exam tomorrow eyyyyyy
His explanation is op I am preparing for jee exams and his videos helped me a lot ❣️❣️❣️❣️
need to say a very big thank you for your clarity and delivery pace, you will be my saving grace in understanding bioscience, haven't found anyone that can teach a newcomer to this field as good as yourself
thanks karen
you are literally a lifesaver i have my finals in a few hours my chem teacher is pretty much useless and his way of teaching is just so unclear i get confused everytime but when i watched your videos on the topic it is alot easier to understand thank you!
Hi Tyler,
You didn't need to convert mass to mole then back. Equation works as mass and number of moles are proportional (linear relationship) to each other.
Great video :)
Please read the Reply of sir 'Tyler Dewitt' to the 'Shenan Desilva'.
I just wanted this comment to move up on the wall, its still valid
I am a college student and these videos are the only reason I'm getting an A. You work magic! Thank you so much for all the time and effort you have put into your teaching and sharing it with us! :)
No doubt great explanation
It's currently 1:50 AM rn. U saved my life
I will attend my test tomorrow and I just watched your vid and it's so helpful. Even this video is 9 years ago but it's still functional to us. Thank you for your kindness 💜
No doubt
That's a lot of "mole-tiplication."
i feel you man
get out . now !
😂😂😂😂😂😂
I know right
😉
I am studying for a Chemistry final and there are some things I just didn't understand. Then I came across your videos and they really do help! Thank you for taking the time out of your day to make these videos!
No doubt great explanation
Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.
only reply.
subscribed because i learned much better here rather than my teacher. lol. you deserve an award
HE IS A VERY GOOD TEACHER
Why the capslock?
haunter8o6 he wants to emphasize it
I can't believe you made me understand in just minutes what was making me go crazy just a couple of hours ago. Why didn't I find you sooner?!! ... I think i love you.
I swear, you save me from failing chemistry every time!! I always go to your channel and you just explain it perfect
Can you do short method instead of long method since the question is how many grams? Cross multiplication is enough, so that we can get exact value of grams.
YOU ARE THE BEST SIR!!!!!!! I'M ALSO TEACHING CHEMISTRY... BUT THE WAY YOU TEACH AND DELIVER... IT'S SIMPLY AMAZING...
المضحك المبكي شخص من اقصى العالم وقبل ١١ سنة يفهمني مالم افهمه من استاذي الحمدلله على التكنولوجيا
جاي أفهم على واحد يحجي انكليزي و لاجاي أفهم على استاذتي الي تحجي عربي 💔😭
I got that. I have a gas laws exam this Friday! wish me luck!
Thank you! Prelims is coming in a week and I'm rushing to get EVERYTHING in my head. I think I can survive the exams now. :)
You are awesome. You so clearly and methodically explain the concepts without sounding condescending or treating the viewer like a child. Excellent video!
you are the best teacher of Chemistry
No doubt great explanation
My teacher took 2/3 days to teach this 3 Gas law, While you sir just took a minutes. This is so helpful thank you!❤
I'm preparing for IIT-JEE and you're videos serve me more conceptual clarity than anyone I've been tutored by. You are just amazing. I would worship you if you were my teacher here.Thank you.
Are you fucking serious? This is an Ap level course.perhaps you should learn something more detailed.Anyway how did you score?
your drawing of Balloon is good. I can't draw like this. Anyway you are extremely awesome teacher. The coolest teacher ever. I enjoy watching your videos and guess what; it teaches me too. You are far better than any other teacher. I really love you for your teaching. 😊🤩🤗
I like the way you teach! Thank you so much!! Its been helping me in college.
You put so much thought and consideration into your videos. I know I speak for a lot of students when I say you are a lifesaver! Thank you!
No doubt
I could not survive Pre-AP Chemistry without your instructional videos. Thank you!!
You are the best teacher. I have seen
No doubt
A big thank you Tyler for this! This really helpful and I easily understand it. You're a great teacher. Thanks again
No doubt great explanation
You definitely show you are here to help others learn not make them fail. Great explanation on your videos. Appreciate it
Very helpful, better explained then my teacher does. Only reason why I not failing chemistry
Your videos and the comments just prove that lecture style learning is actually favored by people!!
When my chemistry teacher teacher teaches all students are like 😵👿😪😴
But when you teacher I may guess all would be like 😉😇🤠🤓✌👌🤘🤟.
Hats off to you man.
I deeply appreciate you Tyler. Its been such a blessing to have encountered your channel. You make college seem so much easier, hell you make premed seem like a piece of cake with your god-like teaching abilities. You have this magic in you as if you are meant to teach. I get so stressed with chemistry and you literally make all my depression vanish after a couple videos. I LOVE YOU SO MUCH. I APPRECIATE YOU SO MUCH. Your teaching style is so genuine and relatable, its honestly mindblowing. I would sell my soul to satan for you to be my chem tutor. i appreciate you so much. like a lot. god youre amazing. sending all my love your way. keep doing what your doing. YOURE MAKING A DIFFERENCE IN THIS WORLD, TRUST ME.
No doubt great explanation
You went in deep girl 🤣😂 but definitely right about his teachings ❤️❤️❤️🥰🥰
According to Avogadro's law, at STP, 1 mole of gas occupies 22.4 L. so 48 L of oxygen should have 48/22.4 which is equal to 2.14 moles, isn't it? Please clarify
That is absolutely right
Why did you only take two sig figs when you converted 50.0g of O2 to moles?
P.S. The videos are great! You make majoring in Chem so much easier!
Thought the same thing. It should be three sig figs.
I love this guy so much, he explained everything so easy. If the answer should be in grams and is not necessarily show working, you don’t have to convert to grams. It would give you same answer.
What if we take the same amount of 2 gases in containers of different volume under same pressure and temp. conditions?We know that gases take up the volume of their container,so even we have same amount of gases we will have different volumes.
That's actually wrong, you can't put same amount of gas in 2 different volumes without changing the pressure
Okk.I understood...thanks
@@swatisingh-vw8ky thats great, i just wanted to help a fellow learner, and if you want more info, you should check boyle's law 👍
alrught so my exam is in 12 hours , you summed up 3 months of my life in 3 hours , i love you
the 32.0 has 2 significant figures, not 3. The 0 after the decimal isnt significant unless there are numbers behind it. Nitpicking, i know. But yeah while you were solving it the first time around, i decided to not convert it to moles and solve it. Worked fine. then i converted it to moles and still worked. I like how you take time to check to see everything cancels out and your units are correct.
Incorrect. All trailing numbers (including zero) after a decimal point are significant. If you're going to be presumptuous enough to try correcting someone who actually teaches chemistry, it's probably a good idea to also make sure you know what you're talking about.
I like how this is presented. Can u do an explanation on avogadros constant and how the gram mole and pound mile differ?
Hello I am from India 🇮🇳 after seeing this video I can understand whole concept. It's okay it is a 9years old video but it is legendary and you r also a legendary teacher
love and support from India, this helped me for my exams
I just love your videos.
you are in my top list.......NO ONE CAN TAKE YOUR POSITION!
Everyday i see your videos and i just love them.
you are the one who introduced me in the world of chemistry :)
dont stop making videos !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Finally, I can get rid of my high school chem book that full of fancy terms and equations, which takes me over 1 hr just to read one damn page . Thank you so much .
So true;
I can't actually read a school text book due to a little problem i have... e_e
But this guy's video is saving me from so much suffering. I really don't know what I'd do in my last few years of school without this kind of help. Amazing explanation, relatively straight forward and portrays it in a simple way to make it look easy and not intimidate students.
12 years and still helpful
This was posted 10 years ago and yet it is very helpful
the formula is v1/n1 = v2/n2 ?
it doesn't really matter...
You can absolutely keep working with mass instead of moles since 32 g/mol is a common factor on both sides of the ecuation and just cancels out, as evidenced by how your first step was to divide by 32 and your last step was to multiply by 32. By doing this, though, the error is conceptual, since n usually denotes moles, so saying n = 50g is wrong from a nomenclature standpoint, but mathematically it works. It's important to know WHY it works, though, because as simple as it looks in this example, other problems are much harder and you gotta keep track of what your n is, what your m is, what your molar mass is, and how they are all related.
Conversion into moles isn't necessary as mass is proportional to number of moles. Solving for n2/79=50/48 also yields 83.
Brilliant, as all your videos are! Thank you also for telling us what are the common errors as well. You have a hand in touching every life that every future doctor or nurse saves because you helped them succeed!
Shouldn't the answer to to the first mole conversion be 1.56 moles of O2 and not 1.6, why did he get an answer with two sig figs????
It wasn't really necessary to convert to moles haha. I used grams to solve: 79L x 50.0g/48L and got 82ish which is probably a little more accurate since the rounding with moles is skipped. It doesn't really matter I guess though. It's good mole conversion practice anyway haha XD
I have an exam tom. And ive learn a lot from this more than my science teacher was ..
Grahams law please?
amazing way to learn from you. you make chemistry easy and very very very interesting to learn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
thank u so much sir with this i was able to understand gas laws
I could learn literally anything if this guy taught it
why is this different from my text book?
Books have word issues
Is there a CD available that contain all your videos and there is, where can I possibly obtain this?
goto vespr.org to get all his videos and many other things
Hey thanks after being forced to go to online school my teacher decided she didn't want to teach anymore
12 years later and his still a King 👑
Thanks, all your videos have helped me so much!
O.O you make my life so easy! THANKS!! :) you discuss your topics so clearly!
this vid is fab and actually man I'm not scamming u dont worry, in case u did bc i just liked and commented on 2 other vids rn, Im just an IG student an May June trial is approaching and your vids were the most helpful and put in mind your very helpful for more than only American diploma students
Thank you so much, I'm a graduating student in senior high school and this helped me a lot for my final examination.
have an exam tomorrow and this helped me a lot. thanks :)
How'd you do?
6:24 isnt it v/n.
I am so in love with your teaching
No doubt great explanation
Thanks a lot for your classes. It is really interesting.i think to solve this problem easily we don't need to change to mol and then again to gram. We can simply multiply 79*50/48 and we can get the same answer in gram.
This is far better than me being taught by my chem teacher! thank you very much
Does a simpler unitary method give the same answer?? 79/48 =1.646X 50 =82
I need you to be my chemistry teacher at tri cities, even though your way takes a tad bit longer it's still easy to understand and I like your way. Good teaching
I was wondering why it was necessary to convert the grams to mole when noticing that there was going to be a 4% difference between the grams to liters? If there was a 4% difference at one point in the equation why should it be necessary to do a bunch of conversions of grams to moles and back to grams again?
THANK YOU SO MUCH!!! your videos are so well put together!!!
I watch your videos the day before my physics class and now I like physics more than maths
i',ve watched all of your chemistry videos and im ready to take my exam
I love your videos, you explain everything so easily. I get through chemistry by looking through all your videos!:)
No doubt great explanation
@@chemistrywithimtiazmari Bruh you're here again! You're everywhere in this comments section!
Honestly, I'm addicted to ya videos.
I have just done my calculation without converting between mole and gram. I have got the same answer: 50g/48L= n/79L --> n = 82.29g. Tyler, can you please explain this? Thanks.
It works without converting because they are the same gas (both O2, which means they have the same conversion factor between grams and moles). I can’t imagine a situation where it would be 100% necessary to convert unless you were doing a very complex problem with chemical reactions and gas changes.
THANK YOUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
I appreciate you so much Tyler !!! Thank you
Thanks, I wish my teacher was more like you
after 12 years, this man still stands the most
This guy saved me On my chem final and midterm biggest goat in the science world
simple and very helpful, you are better than my lecturer.
iv'e read several books on avogadro's law and still didn't get it. i now understand it in 15 minutes. thanks a lot
im a chemistry practice teacher.. this video helps a lot! thank you sir!
I appreciate every step you make because I am watching you. You're fantastic.