Answer:
Molar mass H₃PO₄ = 97.97 g/mol
Explanation:
To determine the molar mass of H₃PO₄ you sum the molar masses of the element in the compound and you multiply them by the subscripts
H₃PO₄ → Phosphoric acid
Molar mass H₃PO₄ = (Molar mass H). 3 +Molar mass P+ (Molar Mass O). 4
1g/mol . 3 + 30.97 g/mol + 16 g/mol . 4 = 97.97 g/mol
Look for the molar masses of H, P and O in a Periodic Table
H = 1 g/mol
P = 30.97 g/mol
O = 16 g/mol