Answer to Question #47048 in Chemistry for John

Question #47048

A 3.530 g sample of an unknown hydrate of cobalt(II) bromide is heated until all the water of hydration is removed. The CoBr2 that remains has a mass of 2.362 g. (Include units in your answer.)

(a) How many moles of CoBr2 are in the sample?

(b) How many grams of water were lost in the dehydration?

(c) How many moles of water were lost?
.

(d) What is the value of "n" in the formula CoBr2 · n H2O? (1, 2, 3, 4...)

Please provide solution.

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