Question

a) A burette which contains 0.001 moles of Mg metal and HCl solution, was inverted in water bath of 300 kelvin. The reaction produces 0.025 L of hydrogen gas with a total pressure of 1 atm. Calculate the gas constant of H₂.

b) A 0.614 mole sample of ideal gas at 12 °C occupies a volume of 4.3 L. What is the pressure of the gas? (R = 0.0821 L.atm/mol.K)

c) Determine the volume occupied by 0.001 moles of H₂ gas at a temperature of 298K and a pressure of 1 atm. (R = 0.0821 L.atm/mol.K)

d) A sample of H₂ gas, at a temperature of 303K and a pressure of 1 atm, occupies 22.2 liters. Determine the mass of H₂ gas. (molar mass of H = 1) (R = 0.0821 L.atm/mol.K)