water driven off: 1.994-1.577 g
percentage of water: waterdrivenoff/1.994 * 100
A 1.994 g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temp. above 170 C in a crucible until a constant mass is reached. The mass of anhydrous CaSO4 is 1.577g. what is percent by mas of water in the hydrated calcium sulfate salt
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what is Aunilinum?
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