120.37 9/ mL 49,2639 39.066 9 T0.1979 45.003 g Molar Mass of Unknown Anhydride Weight of Hydrate and Evaporating Dish Weight of Empty Evaporating Dish Weight of Hydrate Weight of Sample and Evaporating Dish after 1st Heating Weight of Sample and Evaporating Dish after 2nd Heating 49.366 9 Weight of Sample and Evaporating Dish after 3rd Heating* 44.1719 Weight of Anhydride and Evaporating Dish A Weight of Water Lost Weight of Anhydride Experimental Percent Water Moles of Water Moles of Anhydride Ratio of Moles of Water to Moles of Anhydride Experimental Formula of Hydrate

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