1. What is the percent water in calcium chloride dihydrate, CaCl2.2H2O?
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The molar mass of Ca is 40.08 g/mol, Cl is 35.45 g/mol, and H₂O is 18.02 g/mol. So, the molar mass of CaCl₂·2H₂O = (40.08) + 2(35.45) + 2(18.02) = 40.08 + 70.9 + 36.04 = 147.02 g/mol. Now, we need to find the mass of water in the compound. Since there are two Show more…
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