Q 6.     Calculate the molar mass of the following substances.

   (e)     Nitric acid, HNO3

Answers (1)

The molecular mass of  Nitric acid, HNO3  =  1 * Atomic Mass of N + 1 * Atomic Mass of H + 3 * Atomic Mass of O

                                                                    =  1 * 14u + 1 * 1u + 3 * 16u

                                                                    =  14u + 1u + 48u

                                                                    =   63u  

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