Calculate the pressure exerted by 66.0 g of CO2 gas at - 14.5°C that occupies a volume of 50.0 L

Pressure = 0.64 atm

Explanation:

Use Ideal Gas Law PV = nRT = > P = nRT/V

n = moles CO₂ (g) = 66g/44g/mol = 1.5 mol CO₂

R = Gas Constant = 0.08206 L·atm/mol·K

T = Temperature = - 14.5°C = (-14.5 + 273) K = 258.5 K

V = 50.0 Liters

P = (1.5 mol) (0.08206 L·atm/mol·K) (258.5 K) / (50.0 L) = 0.64 atm