Ideal Gas Law Practice Problems

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Ideal Gas Law Practice Problems

Рет қаралды 788,666

Күн бұрын

This chemistry video tutorial explains how to solve ideal gas law problems using the formula PV=nRT. This video contains plenty of examples and practice problems.
Pressure & Boiling Point: • Introduction to Pressu...
Gas Pressure Unit Conversion:
• Gas Pressure Unit Conv...
Manometers & Barometers:
• Manometer Pressure Pro...
Water Height & Mercury Column:
• Height of Water in a B...
Boyle's Law Practice Problems:
• Boyle's Law Practice P...
_________________________________
How Does a Bike Pump Work?
• How Does a Bike Pump W...
Charles Law:
• Charles' Law
Gay Lussac's Law:
• Gay Lussac's Law Pract...
Avogadro's Law:
• Avogadro's law Practic...
Ideal Gas Law Problems:
• Ideal Gas Law Practice...
Combined Gas Law Problems:
• Combined Gas Law Problems
_______________________________
Gas Stoichiometry Problems:
• Gas Stoichiometry Prob...
Molar Mass of a Gas at STP:
• Molar Mass of a Gas at...
Gas Density at STP:
• Gas Density and Molar ...
Dalton's Law of Partial Pressure:
• Dalton's Law of Partia...
Collecting Gas Over Water:
• Collecting Gas Over Wa...
_______________________________
Gas Density of Mixtures:
• Gas Density & Average ...
Average Kinetic Energy of a Gas:
• Average Kinetic Energy...
Graham's Law of Effusion:
• Graham's Law of Effusion
Kinetic Molecular Theory of Gases:
• Kinetic Molecular Theo...
Gas Law Problems Review:
• Gas Law Problems Combi...
_________________________________
Final Exams and Video Playlists:
www.video-tuto...
Full-Length Videos and Worksheets:
/ collections

Пікірлер: 301

@TheOrganicChemistryTutor 7 ай бұрын

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@rasheedvizconde9522 4 жыл бұрын

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 3 жыл бұрын

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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@stable8692 3 жыл бұрын

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

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@harmanbaidwan1713 4 ай бұрын

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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@stavrosapanu 4 жыл бұрын

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

@rosette_renah 4 жыл бұрын

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

@leeknow1896 2 жыл бұрын

@@rosette_renah you mean L cuz atm is for pressure

@alyzhamari114 Жыл бұрын

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

@nnennaokikeuzor6165 Жыл бұрын

Actually no it should always be measured in atm

@mananzahid4190 4 жыл бұрын

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@stunnamiya 4 ай бұрын

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

@bestcabbage 4 ай бұрын

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!

@akkingkong4109 3 ай бұрын

R is a constant

@lolotaha2392 2 жыл бұрын

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@laurenletendre4154 2 жыл бұрын

I'm here because this will be on my physics final, gotta love college

@Daniellejanea. 4 жыл бұрын

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 .

@user-ui2vw8zu5n 5 ай бұрын

Why is pressure measured in atm instead of Pascal?

@GivenNgomane-ue9uv 3 ай бұрын

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.

@phoebe915 5 ай бұрын

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?

@bradpotts1747 12 күн бұрын

why isnt the pressure rounded to 2 significant figures in the first problem?

@MrZackavelli 2 жыл бұрын

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 2 жыл бұрын

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

@collinskipchirchir27 3 жыл бұрын

thanks because my problem is solved

@ayahtoom Жыл бұрын

you made me understand this so well 🥲

@alexaortega8614 5 жыл бұрын

how would you structure an equation if the equation is asking for molar mass of the gas? I understand the rewrite of r= PV/RT but the answers don’t add up.

@job1466 4 жыл бұрын

you don't need to change the equation, you need to use a data booklet and find them in there, itll tell you the mass of the molecules

@unodos1316 4 жыл бұрын

PV=(mRT)/molecular weight such that m is the mass

@alyzhamari114 Жыл бұрын

Keep the equation. After you get the n, use stoichiometry to convert from moles to gas or vice versa

@tofupowda 4 ай бұрын

not sure waht calculator you're using but this 4:17 equals 30, not 32

@nehaparmar84 5 ай бұрын

where did the rest of the value of r constant go??(0.008206 * (L * atm / mole * k))

@orteus 2 жыл бұрын

thank you so much

@theanonimo26able 4 жыл бұрын

Thanks!!!!!!

@yani1693 5 жыл бұрын

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

@fredericksanderangulo8643 3 жыл бұрын

Thanks a lot 👍👍

@eriarama151 3 жыл бұрын

Thank you !!!

@arininurazizah1969 3 жыл бұрын

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

@farhanishraq5812 4 жыл бұрын

amazing]

@xnarusakuxshikainox 4 жыл бұрын

Nice

@immanplayz9235 4 жыл бұрын

where did you get that 0.08206?

@Ahtohallan. 3 жыл бұрын

Same question. What is R

@motivationalvideos1584 2 жыл бұрын

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

@justinsantos5751 7 жыл бұрын

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

@nehabheemar9534 11 ай бұрын

did u get it at last

@damianfalcone1800 4 жыл бұрын

is .08206 constant?

@alyzhamari114 Жыл бұрын

Yes, if the pressure is in atm. If it's in KPa, use 8.314

@Dyan_TPR 3 жыл бұрын

Isn't R=8.31????

@nutcrackerreal100 3 жыл бұрын

That’s for J mole, this is L/atm

@mohamadshanti6758 3 жыл бұрын

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

@vtl1965 3 жыл бұрын

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

@alfaz2198 3 жыл бұрын

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

@bint_mufadil 2 жыл бұрын

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

@bringbackmemesineurope1576 3 жыл бұрын

the R constants are so confusing, one question mentions torrs, but he uses the constant for atm, another mentions kpa, but he uses the constant for atm again. how am i supposed to know when to use which?

@TheRogue12 3 жыл бұрын

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

@TheTalkingAmphibian Жыл бұрын

The intro is at the end

@dpr823 Жыл бұрын

why did you round the first one to 4 sig figs?

@Christina-eh4pq 5 жыл бұрын

My chemistry teacher uses Kb= 1.380x10^-23 as a constant, is this the same thing as r?

@WadcaWymiaru 4 жыл бұрын

I doubt. *R* is always 8.314...it is that same for all gases.

@jannien4129 4 жыл бұрын

@@WadcaWymiaru ?

@jannien4129 4 жыл бұрын

@@WadcaWymiaru ?

@jannien4129 4 жыл бұрын

@@WadcaWymiaru ?

@jeffersondanso1160 4 жыл бұрын

henco n R is a constant of .0821 when the units are atm•L/mol•K but the constant is 8.314 when the units are J/mol•K

@athenamitsuya3119 9 ай бұрын

Question how did you get the o.o8206 Is 273 constant if the problem has torr

@phoebe915 5 ай бұрын

0.08206 is the gas constant. If the pressure is given in torr convert to ATM before solving

@mohabmoemen237 3 жыл бұрын

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! )

@ethansloan1774 2 жыл бұрын

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

@Idkmynmsdaskme 5 ай бұрын

How do you know R and the tempersture????

@phoebe915 5 ай бұрын

R is the gas constant value and temp is always given in the problem. Becareful tho, study your questions becoz there are two values for R and they can be used in different situations whereas for temp. Make sure to convert to Kelvin!