calculate the molar mass of the following H20
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The molar mass is the total of all atomic weights of atoms in a molecule, expressed as grams. Hence water has 2 hydrogen atoms and one oxygen atom. The atomic weight of hydrogen is 1.00797 and for oxygen the atomic weight is 15.9994. So the molar mass of H2O is 15.9994 + (2 x 1.00797) which equals 18.01534 grams/mole
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