Ideal Gas Law Practice Problems

[@TheOrganicChemistryTutor]

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[@rasheedvizconde9522]

Just remember why he uses different constant instead of 8.3145 it's because when you are asked to find ATM you should use the R=0.08206 constant and when asked to find Kilopascal you use R=8.3145 constant. Even if you convert Torr to kPa and change constant from 0.08206 to 8.3145 the answer will still be the same.

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Thanks

[@pumpkin5770]

I actually confused about that ... Why did he use 0.0826 ??? Bcs i read from somewhere else and they use 6.24 instead ..

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[@georgesadler7830]

Professor Organic Chemistry Tutor, thank you for an outstanding explanation of the classical Ideal Gas Law in AP/General Chemistry. The problems are simple to follow and understand, however conversions can be problematic. This is an error free video/lecture on KZbin TV with the Organic Chemistry Tutor.

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The intro is the outro they are inversely proportional lol HAJAJJAJA

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that's not what inversely proportional means.

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[@stable8692]

Why ideal gas are applicable for only to dry gas not moist gas?

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I still love your videos 💋

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Thank you

[@Brisaberryy]

Thank you !

[@harmanbaidwan1713]

1:47, we can also say 471 Kpa for the answer aswell? They don't specify which units to give the answer in

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Great video

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Hi there JG! Could you help me factor these polynomials? It's so hard my nose started bleeding. Anyways, here are the questions: 1. bc(b-c)-ca(c+a)+ab(a+b) 2. a^2b-a^2c-ac^2-ab^2-b^2c+bc^2+2abc Please help me! Thanks

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[@mohamadshanti6758]

1:47, the R is a universal constant which is 8.314, why did you put it as 0.08206?

[@vtl1965]

8.314 is when the pressure is in terms of kPa while 0.08206 is in terms of atm

[@stavrosapanu]

For the first question shouldn't the "V" be converted to m^3 ??

[@rosette_renah]

Nope According to the gas constant 0.08206 L. atm/mole. K, It shows that the V should always be in atm

[@leeknow1896]

@@rosette_renah you mean L cuz atm is for pressure

[@alyzhamari114]

No. In order to cancel the units present in your constant R, L should be the only unit of V

[@nnennaokikeuzor6165]

Actually no it should always be measured in atm

[@joshuasinghofficial1148]

awesome. thank you

[@barbarapagan6292]

I like the videos but you get sloppy on a few terms like R is for the constant R=0.08206 and there are people who are beginners it's like where the heck he got that long number, I recommend doing steps on your videos like this especially problem-solving.

[@stunnamiya]

Bro where u even get R from in the beginning , Im doomed

[@bestcabbage]

you find R by doing (pressure x liters)/(mols x kelvin) at STP, so basically it’s (22.4 L x [pressure])/(1 mol x 273 K). in the first one he used the R for atm (0.0821), for torr R is equal to 62.4 torrL/molK, and for kPa it’s 8.314. hope that helps!

[@landrews26]

R is a constant

[@motivationalvideos1584]

When to use the absolute pressure for the Ideal gas law?

[@MrZackavelli]

I'm struggling enough with this subject, where in the hell did this 0.08206 come from? Care to do any explaining at all?

[@andrearendel9452]

R is always constant so its just something you memorize. In the Ideal Gas Law equation, PV=nRT where R is either 8.3J / (mol * K) OR 0.082 (L * atm) / mol * K). Which one you use depends on the question, if asking for pressure/atm we use the 0.082 wheras kilopascal its 8.3

[@GivenNgomane-ue9uv]

Can you please 🙏 explain why you converted the pressure from kPa to atm in question number 3 which was about CO2? I am confused 😕 because in some instances you continued using kPa without converting to atm. Can you help me understand why you did that? I am really struggling to comprehend it.

[@orteus]

thank you so much

[@yani1693]

Why aren’t you rounding to the number of sig figs ? 😢

[@fredericksanderangulo8643]

Thanks a lot 👍👍

[@mohabmoemen237]

i expanded a lot in this topic and i wonna know is the ideal gas law is in physics or chemistry, and another thing is this for igcse students, plz Answer me ( i need help! )

[@Daniellejanea.]

should I have gotten the same answer If instead of using 0.0821 I used 8.31 to keep the kPA units? I also converted the mL to Liters so im not understanding how I got 0.44g of CO2 .

[@eriarama151]

Thank you !!!

[@microdetailsllc]

How did you find R in the first question? If were dividing V and T wouldnt R be 0.00793?

[@theanonimo26able]

Thanks!!!!!!

[@hashinisaubagyahashinisaub6876]

Please make some sums taking the p as nm-2 plz plz 😭❤️

[@error7452]

Why don't you use 237.15 in kelvin?

[@ethansloan1774]

I'm in class rn and my teacher is trying to teach this and failing horribly

[@arininurazizah1969]

i have a question, what do we do with the s.f?

[@xnarusakuxshikainox]

Nice

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amazing]

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[@TheTalkingAmphibian]

The intro is at the end

[@TheRogue12]

What are you supposed to do when the number of moles is written in scientific notation?

[@christopherteo4446]

Can this lesson also apply on basic thermodynamics?....need reply

[@phoebe915]

5:20 I got 33550ml in the second question. He got 33540ml i realised that the difference was from our multiplication of the right side values where it's supposed to be 32.0034 but he only used the 32. While i rounded mine off to three significant figures he didn't, do you think that could be a big case in A-level chem?

[@ayahtoom]

you made me understand this so well 🥲

[@deeprest9284]

Liquefied natural gas (LNG) is mainly methane with molecular weight of 16 g/mol. A 10 m3 tank is constructed to store LNG at -164°C and 1 atm pressure, under which conditions its density is 415 kg/m3 . Calculate the volume of storage tank capacity of holding the same mass of LNG as a gas at 20°C and 1 atm. Argh can someone help me solve this

[@alfaz2198]

In the first problem why don't u convert 2.5L to cubic meters

[@bint_mufadil]

Because cubic deci*meters (I believe that's what you meant) are the same as L . 1L = 1dm³

[@chinny7700]

i thought we're going to add 273.15 in converting celsius to kelvin?

[@rebecafiller2223]

This is a dumb question but how do u know what the unit of measure of the result is? Like how did u know the last one was mole and the one before was like liter or Milliliter?