Hydrogen


Atomic weight of Hydrogen
$$ H = \frac {\text{%}_{\,1}^{1} H \times 1 + \text{%}_{\,1}^{2} H \times 2 + \text{%}_{\,1}^{3} H \times 3 }{100 }$$

Vapour density of a gas
$$ \text{Vapour density of a gas } = \frac {\text{moler mass of gas}}{\text{moler mass of }H_{\,2}}$$

Molecular weight
$$ \text{ Molecular weight } = 2 \times (Vapour Density) $$

Volume strength of H2O2
$$ \text{ Volume strength of } H_{\,2}O_{\,2}= Molarity \times 11.2 = Normality \times 5.6 $$