calculate molar mass water
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Explanation: One mole of H2 O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol. Mass of one mole of water = 2 g/mol + 16 g/mol = 18 g/mol.
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molar mass of water
H2O - ???
mass of H atm - 1 moles
mass of O atm - 16 moles
H2O - 2(1) + 16
= 18 molar grams
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