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03/01/2022 2:47 pm
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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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03/01/2022 2:50 pm
Total amount of solute present in the mixture is given by,
300 x \(\frac{25}{100}\)+ 400 x \(\frac{40}{100}\)
= 75 + 160
= 235 g
Total amount of solution = 300 + 400 = 700 g
Therefore, mass percentage (w/w) of the solute in the resulting solution,
= \(\frac{235}{700}\)x 100%
= 33.57%
And, mass percentage (w/w) of the solvent in the resulting solution,
= (100 - 33.57)%
= 66.43%