Question

Calculate the molecular mass of nitric acid(HNO₃)

Answer 1

• $$\begin{gathered} \mathrm{Molecular}\mathrm{mass}=1+14+16\times 3 \\ =15+48=63 \end{gathered}$$
• Molecular mass of a compound is the sum of atomic masses of an element present in that compound
• Therefore the molecular mass of nitric acid (HNO₃) will be 63 grams.