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28-02-2017
Chemistry

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the percent by mass of water in the hydrate na2so4 * 10h20 is closest to

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scme1702 scme1702

06-03-2017

Total mass of the crystal:
23 x 2 + 32 + 16 x 4 + 10 x 18
= 322

Mass of water:
10 x 18
= 180

Percentage of water = 180 / 322 x 100 = 55.9%

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