Science, asked by vkashish623, 2 months ago

Find the molecular mass of H2O​

Answers

Answered by sandeepkumar2272005
5

Explanation:

The average mass of one H2O molecule is 18.02 amu. 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.

Answered by as8387759
3

Answer:

molecular mass of water =(2×atomic mass of hydrogen)+(1×atomic mass of oxygen)

(2×1)+(1×16)= 18u

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