How do i solve ideal gas law questions?

alinush · August 6, 2022, 5:07pm

I’m traying to solve the ideal gas law pdf and I have no idea from where to start can someone help me understand I tried to use khan academy and other places but still no luck

Juliette · August 6, 2022, 5:25pm

Hi!

i tried writing out all the steps, as well as a trick for you to check if your calculation would be plausible, if something isn’t clear feel free to ask

[Album] ideal gas

Hope this helps!

alinush · August 6, 2022, 5:38pm

i still dont understand the first equation how is n = 0.38 ?
from where did the 22.4L come ?

Juliette · August 6, 2022, 5:41pm

Good question,

for an ideal gas 1 mole = 22,4 L always!

here we have a volume of 8,5L, so this volume would be taken up by 0,38 moles of an ideal gas

alinush · August 6, 2022, 5:50pm

ok thank you very much it is a huge help

dorsa_vaezi · August 6, 2022, 5:54pm

Hey Juliette!
For an ideal gas the volume isn’t always 22.4.
Stp is just an example of the ideal gas situation cause.
The valume of one mole of a gas in 1atm and 273k is 22.4