Question

Calculate the moles of hydrogen present in a `500 cm^(3)` sample of hydrogen gas at a pressure of 760 mm of Hg and `27^(@)C`

Answer 1

Correct Answer - `2.03 xx 10^(-2) mol`
`500 cm^(3) = 0.5 L, 760 mm Hg = 1 atm`. Now apply the gas equation, `n = (PV)/(RT)`