calculate The mass of one molecule of H2O, if: Atomic mass of Hydrogen = 1 ; Atomic mass of Oxygen = 16
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The molecular weight of water is 18 g/mol. Hence, one mole of water weighs 18 g.
One mole of water contains 6.023×10
23
water molecules.
Mass of one water molecule =
6.023×10
23
18
=2.988×10
−23
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