What is the molar mass of H3PO4?

(Molar mass of H = 1.0079 g/mol; P = 30.974 g/mol; O = 15.999 g/mol)

97.994 g/mol

Explanation:

One molecule of H₃PO₄ contains three atoms of H, one of P, and four of O.

3H = 3 * 1.0079 u = 3.0237 u

1P = 1 * 30.974 u = 30.974 u

4O = 4 * 15.999 u = 63.996 u

Total = 97.994 u

One molecule has a mass of 97.994 u.

One mole has a mass of 97.994 g.

The molar mass of H₃PO₄ is 97.994 g/mol.