Question

calculate the percentage composition in terms of the mass of a solution obtained by mixing 300 grams of 25% and 400 gram of 40% solution of mass​

Answer 1

Answer:

Explanation:

total mass of solution, (M) = 300+400 = 700 gram

mass of solute in solution 1 = (300*25)/100= 75 gram

mass of solute in solution 2 = (400*40)/100= 160 gram

total mass of solute (m)= 75+160 = 235 gram

solute % (by mass ) in solution = (m/M)*100 = (235/700)*100= 33.57 %

solvent % (by mass ) = 100-33.57 = 66.43 %