Question

Concentrated nitric acid oxidizes phosphorous to phosphoric acid according to the following equation :
P + 5HNO₃ → H₃PO₄ + H₂O + 5NO₂
What mass of nitric acid will be consumed at the same time?

Answer 1

Given equation is :
P + 5HNO₃ → H₃PO₄ + H₂O + 5NO₂
Molecular mass of nitric acid = 63
31g of phosphorous will consume = 6 g of nitric acid.