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When 0.236 g of the hydrate CoCl2•xH2O is heated, 0.128 grams of anhydrous CoCl2 remains. What is the value of x in the formula for the hydrate? (hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate compound equals the moles of anhydrous compound)

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