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15 April, 16:54

What is the percent of H2O in a sample of a hydrate whose mass is 1.1290 g if the mass of water in the sample was 0.1660 g?

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  1. 15 April, 18:24
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    The hydrate contains 14.70 % H₂O by mass.

    Mass % H₂O = mass of water/mass of hydrate * 100 %

    = 0.1660 g / 1.1290 g * 100 % = 14.70 %
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