Chemistry, asked by satyam12389, 11 months ago

calculate molecular mass of h2o

Answers

Answered by Pradnya786

12

Molecular mass of h2o is 18

Answered by Anonymous

11

The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol. Notice that the molar mass and the formula mass are numerically the same.

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