question for chem

Question

What volume in liters is occupied by 2.93 moles of chlorine gas that has a temperature of 21^oC at a pressure of 0.86 atmospheres?

Answer 1

From PV = nRT, v = nRT/P = (2.93 mol) * (0.08206 L·atm/K·mol) * (21 + 273 K) / (0.86 atm) = 82 L (to 2 sig figs).