Answer to Question #252963 in General Chemistry for Ash

Question

A 0.810 kg of H2O vapor is contained in a vessel with a volume of 655 liters at 150.5°C. Calculate the pressure (in mmHg) of the water vapor inside the vessel.

Answer 1

Molar mass of H2O = 18.01528 g/mol

810/18.01528= 44.962moles

PV= nRT

P655= 44.962× 8.314 J/mol·K.×423.5

P655= 158310.26

P= 241.7mmHg