Calculate the molecular mass of HNO3 ?
67u
65u
63u
61u
The molecular mass of HNO3 = the atomic mass of H + the atomic mass of N + the atomic mass of O
= 1 + 14 + 3× 16 = 63u
(a) Calculate the relative molecular mass of water (H2O).
(b) Calculate the molecular mass of HNO3.