Question

Concentrated nitric acid oxidizes phosphorus to phosphoric acid according to the following equation:

\[\ce{P + 5HNO3 -> H3PO4 + 5NO2 + H2O}\]

If 6.2 g of phosphorus was used in the reaction, calculate the mass of nitric acid consumed at the same time.

Answer 1

\[\ce{\underset{[Steam 1 mole]}{P + 5HNO3} -> H3PO4 + H2O + 5NO2}\]

Mass of nitric acid consumed = `(315  "g")/(31  "g") xx 6.2  "g"`

= 63 g