How many moles of helium are required to fill a 5.10 L ballon to a pressure of 1.1 atm at 22 Kelvin? Show your work to receive full credit.

n = 3.1 moles

Explanation:

Given that,

The volume of a balloon, V = 5.1 L

Pressure, P = 1.1 atm

Temperature, T = 22 K

We need to find the number of moles are required to fill the balloon. We know that,

Gas law, PV = nRT

Where

R is gas constant, R = 0.08206 L-atm/mol-K

So,

So, there are 3.1 moles of helium are required.