Consider a mixture of the two solids, BaCl2 ∙ 2H2O (FM 244.26) and KCl (FM 74.551). When the mixture is heated to 160°C for 1 h, the water of crystallization is driven off: BaCl2 ∙ 2H2O(s) BaCl2(s) + 2H2O(g) A sample originally weighing 1.7839 g weighed 1.5623 g after heating. Calculate wt% Ba, K, and Cl in the original sample.
Consider a mixture of the two solids, BaCl2 ∙ 2H2O (FM 244.26) and KCl (FM 74.551). When the mixture is heated to 160°C for 1 h, the water of crystallization is driven off: BaCl2 ∙ 2H2O(s) BaCl2(s) + 2H2O(g) A sample originally weighing 1.7839 g weighed 1.5623 g after heating. Calculate wt% Ba, K, and Cl in the original sample.
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Chapter1: Chemical Foundations
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Consider a mixture of the two solids, BaCl2 ∙ 2H2O (FM 244.26) and KCl (FM 74.551). When the mixture is heated to 160°C for 1 h, the water of crystallization is driven off:
BaCl2 ∙ 2H2O(s) BaCl2(s) + 2H2O(g)
A sample originally weighing 1.7839 g weighed 1.5623 g after heating. Calculate wt% Ba, K, and Cl in the original sample. (Hint: The mass loss tells how much water was lost, which tells how much BaCl2 ∙ 2H2O was present. The remainder of the sample is KCl.)
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