Answer to Question #159155 in General Chemistry for Harith Bouhaddioui

Question #159155

what is the formula mass of calcium sulfate dihydrate

Expert's answer

Calcium Sulfate dihydrate = "CaSO_4.2H_2O"

formula mass = Ca + S + 4×O + 2(2×H + O) = 40 + 32 + (16×4) + 2(1×2 + 16) = 172g.

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