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A solution is obtained by mixing 300 g of 25% solution and 400 g of 40% solution by mass.Calculate the mass percentage of the resulting solution. |
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Answer» Solution : 300 g of 25% solution CONTAINS = 75 g SOLUTE 400 g of 40% solution contains = 160 g solute Total solute = 75 + 160 = 235 g Total solution = 300 + 400 = 700 g PERCENTAGE of solute in the solution = `235/700 xx 100 = 33.5%` Percentage of water in the solution = 100 - 33.5 = 66.5%. |
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