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Calcium Sulfate Dihydrate (Commonly Known as Gypsum)dissolves in Cold Water

Question 14

Multiple Choice

Calcium sulfate dihydrate (commonly known as gypsum) dissolves in cold water to the extent of 0.241 g per 100.cm3. What is the concentration of calcium ions in this solution?


A) 1.77*10-2 M
B) 2.80*10-2 M
C) 1.77*10-3 M
D) 3.54*10-2 M
E) 1,40*10-2 M

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