A hydrated salt is a solid that includes water molecules within its crystal structure. A student heated a 9.10-gram sample of a hydrated salt to

a constant mass of 5.41 grams. What percent by mass of water did the salt contain?

(1) 3.69% (3) 40.5%

(2) 16.8% (4) 59.5%

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2 August, 11:38

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Mira Mathis · Answer 1

Subtract 5.41 from 9.10. The salt contained 3.69 grams of water. 3.69g of water/9.10g hydrated salt*100 = 40.5%, (3).

A hydrated salt is a solid that includes water molecules within its crystal structure. A student heated a 9.10-gram sample of a hydrated salt toa constant mass of 5.41 grams. What percent by mass of water did the salt contain?(1) 3.69% (3) 40.5%(2) 16.8% (4) 59.5%