Calculate the molecular mass of nitric acid, HNO₃. (Atomic masses : H = 1 u ; N = 14 u ; O = 16 u)

Calculate the molecular masses of the following:

(a) Hydrogen, $H_2$

(b) Oxygen, $O_2$

(c) Chlorine, $C{l}_2$

(d) Ammonia, $N{H}_3$

(e) Carbon dioxide, $C{O}_2$

(Atomic masses: H = 1 u, O = 16 u; Cl = 35.5 u; N = 14 u; C = 12 u)

The molecular formula of glucose is $C_6{H}_{12}{O}_6$. Calculate its molecular mass. (Atomic masses: C = 12 u; H = 1 u; O = 16 u)