ideal gas law chemistry

Question

At 17 °C, a 0.80 mole sample of a gas exerts a pressure of 1.2 atmospheres. What is the volume of the container?

Answer 1

From the title of your question, you already know it's an ideal gas law question. So let's start with the ideal gas law:

PV = nRT

Rearrange to solve for V:

V = nRT/P

n = 0.80 moles

R = 0.0821 L*atm/mol*K

T = 17 +273 = 290 K (don't forget to convert to K)

P = 1.2 atm

Plugging this into a calculator, we find V = 15.87 L which we round to 16 L (2 sig figs).