26.8 g of Na_2SO_4.xH_2O gave 12.6 g of water on heating. The value of – InterviewSolution

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1.	26.8 g of Na_2SO_4.xH_2O gave 12.6 g of water on heating. The value of in the compound is (M. mass of Na_2SO_4 = 142)
Answer» 10 7 5 6 Solution :WT. of anhy. `Na_2SO_4=26.8-12.6=14.2 g` 14.2 g anhy. Salt COMBINES with water = 12.6 g 142 g anhy. Salt combines with water =`12.6/14.2xx142=126` g `therefore H_2O` (MOLES) =126/18=7

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