Posted by **brandi** on Friday, November 21, 2008 at 10:24am.

How many moles of gas does it take to occupy 120L at 2.3atm and 340K

- chemistry -
**Dr Russ**, Friday, November 21, 2008 at 10:38am
You will need to assume that it is an ideal gas and that 1 mole of any ideal gas occupies 22.4 litres at STP (273 K, 1 atm).

then use P1V1/T1=P2V2/T2

I would convert 120 L to STP and then compare the volume obtained with 22.4 litres as this then gives you the number of moles.

- chemistry -
**Jeremy**, Sunday, November 23, 2008 at 12:36pm
I disagree with Dr. Russ's method. Use PV=nRT, where P=2.3atm, V=120L, n= unknown moles, R= .08205, T=340K.

Solve for n to get 9.9 mol gas.

Without significant figures, n=9.893536939.

## Answer this Question

## Related Questions

- chemistry - How many moles of gas does it take to occupy 120 L at a pressure of ...
- chemistry - Ideal Mixed Gas Law problems 1. What is the pressure generated by a ...
- chemistry - What is the density of UF6 (subscript) gas? What volume would 2.35 ...
- Chemistry - What volume does 0.25 moles of oxygen gas occupy ar STP?
- Chemistry - I don't really know how to go about this, Please help 1. Calculate ...
- chemistry - sample of argon gas collected at a pressure of 1.11 atm and a ...
- chemistry - what volume would 4.3 moles of hydrogen gas occupy at 45 degrees and...
- chemistry - How many moles of a gas will occupy a volume of 0.53 L at a ...
- chem - Show work 1. How many moles of oxygen will occupy a volume of 2.50 liters...
- Chemistry 22 - 1. What is the Kelvin temperature of a system in which 4.50 mol ...

More Related Questions