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.

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» Solution :300 g of `25%` solution containsd solute = 75 g 400 g of `40%` solution contains solute = 160 g TOTAL MASS of soute `= 160 + 75 = 235g` Total mass of solution `= 300 + 400 = 700 g` `%` of solute in the final solution `= (235)/(700) xx 100 = 33.5%` `%` of water in the final solution `= 100 - 33.5 = 66.5%`