Consider a mixture of the two solids BaCl2•2H2O (FM 244.26) and KCl (FM 74.551), in an unknown ratio. When the unknown is heated to 160°C for 1 hr, the water of crystallization is driven off. A sample originally weighing 1.783 g weighed 1.562 g after heating. Calculate the weight percent of Cl in the original sample.

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Consider a mixture of the two solids BaCl2•2H2O (FM 244.26) and KCl (FM 74.551), in an unknown ratio. When the unknown is heated to 160°C for 1 hr, the water of crystallization is driven off. A sample originally weighing 1.783 g weighed 1.562 g after heating. Calculate the weight percent of Cl in the original sample.

 

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