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3 February, 01:54

The molar mass of water (H2O) is 18.0 g/mol. A sample of water has a mass of 18.0 g. How many moles of water are contained in this sample?

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  1. 3 February, 02:20
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    The sample contains 1.00 mol H₂O.

    Moles of water = 18.0 g H₂O * 1 mol H₂O/18.0 g H₂O = 1.00 mol H₂O
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