A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium is contained in 45.0 g of calcium fluoride?
A. 2.56 g
B. 7.70 g
C. 15.0 g
D. 23.1 g
Answer:D
A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium is contained in 45.0 g of calcium fluoride?
A. 2.56 g B. 7.70 g C. 15.0 g D. 23.1 g