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A hydrated salt of calcium sulfate, CaSO4, 1.803 g is heated at a temperature greater than 170C in a crucible until a constant mass is

A hydrated salt of calcium sulfate, CaSO4, 1.803 g is heated at a temperature greater than 170C in a crucible until a constant mass is reached. The mass of the anhydrous CaSO4 salt is 1.426 g. What is the percent by mass of water in the hydrated calcium sulfate salt. A none of the above B 70.09% 26.43% (D) 29.01%

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