calculate the mass of one atom of H2O in gram
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2
Answer:
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.
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Answered by
1
Answer:
18g
Explanation:
H-1g
O-16g
2 atoms of H2 and 1 atom of O
2+16= 18g
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