test/practice tes PERCENT WATER IN A HYDRATE PRELAB QUESTIONS NAME The following data were obtained when a hydrate was heated: crucible + sample 31.781 g empty crucible 30.501 g crucible + sample after heating 31.100 g Calculate the % water in the hydrate. SHOW WORK 1. Decide whether the sample was BaCl2 2H2O or MgCl2 6H20 by calculating the theoretical % water in each compound and comparing to your answer in #1. SHOW WORK. 2. 95.218 g/mole 1 MgCl2 Formula weights: 208.25 g/mole 1 ВаClz 18.0153 g/mole 11 Н.О 89

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A: Calculation for number of moles of MgCl2:

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