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I've tried to work out the problem below, but I got weird answer, it's not even in one of the choices. Please help me solve this problem and show me out u got it. Thank you.

A sample of a hydrate of BaCl2 with a mass of 61 grams was heated until all the water was removed. The sample was then weighed and found to have a mass of 52 grams. What is the formula for the hydrate?

(A) BaCl2 * 5H2O

(B) BaCl2 * 4H2O

(C) BaCl2 * 3H2O

(D) BaCl2 * 2H2O

(E) BaCl2 * H2O

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# What is BaCl2 * 5H2O

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