A mixture of hydrogen and oxygen has volume 2000 cm^3, temperature 300 K, pressure 100 kPa and mass 0.76 g. The ratio of number of moles of hydrogen…

A mixture of hydrogen and oxygen has volume $\displaystyle 2000 \mathrm{~cm}^3$, temperature $\displaystyle 300$ K, pressure $\displaystyle 100$ kPa and mass $\displaystyle 0.76$ g. The ratio of number of moles of hydrogen to number of moles of oxygen in the mixture will be : [Take gas constant $\displaystyle \mathrm{R}=8.3 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}$ ]