Question

what is the mass ofone molecule of water​

Answer 1

Answer:

18.02 amu

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.

Answer 2

Answer:

18.02 amu

Explanation:

the average mass of one H2O molecule is 18.02 amu. The number of Atom in a exact number, the number of mole is an exact number; they do not effect the number of significant figure.

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