Question

A sample of gas at 42ºC (315 K) has a volume of 5.2 L and exerts a pressure of 608 mm Hg (0.8 atm). How many moles of gas are in the sample?

Answer 1

0.16 mol

Step-by-step explanation:

you will use the ideal gas law PV=nRT where R is approximately 0.082 atm×L/mol×K

PV=nRT

n=PV/RT

n=0.8×5.2/0.082×315

n=0.16 mol