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April 1, 2015

Homework Help: Chemistry

Posted by Sara on Monday, September 24, 2012 at 10:47pm.

A 2.914 gram sample of gypsum, a hydrated salt of calcium sulfat, CaSO4, is heated at a temperature greater than 170 degrees Celcius in a crucible until a constant mass is reached. The mass of the anhydrous CaSO4 salt is 2.304 grams. Calculate the percent by mass of water in the hydrated calcium sulfate salt

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