How much calcium is contained in 35.0 g of calcium fluoride?

Name: How much calcium is contained in 35.0 g of calcium fluoride?
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Question

Quizplus · Accepted Answer

Calcium fluoride (CaF2) consists of one calcium ion (Ca2+) and two fluoride ions (F-). The molar mass of CaF2 is 78.08 g/mol, which means that 1 mole of CaF2 contains 1 mole of Ca2+ ions. Therefore, in 35.0 g of CaF2, the mass of calcium is (1/1) x (40.08/78.08) x 35.0 g = 18.0 g of calcium. Hence, the correct answer is D) 18.0 g.

How Much Calcium Is Contained in 35