A solution is obtained by mixing 300 g of 25% solution and 400 g of 40

1.	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.
Answer» 300 g of 25% solutions contains solute = 75 g 400 g of 40% solution contains solute = 160 g. Total solute = 160 + 75 = 235 g Total solution=300 + 400 = 700 g % of solute in final solution = \(\frac{235}{700}\) × 100 = 33.5% % of water in the final solution = 100 - 33.5 = 66.5%

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.

Answer»

300 g of 25% solutions contains solute = 75 g

400 g of 40% solution contains solute = 160 g.

Total solute = 160 + 75 = 235 g

Total solution=300 + 400 = 700 g

% of solute in final solution = \(\frac{235}{700}\) × 100 = 33.5%

% of water in the final solution = 100 - 33.5 = 66.5%

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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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