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Question
Calculate the molar mass of the following substance:
Nitric acid, HNO3
Solution
Molar mass of nitric acid, HNO3 = atomic mass of H + atomic mass of N + 3 × atomic mass of O
= (1 + 14 + 3 × 16) u
= (1 + 14 + 48) u
= 63 u
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