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» Total amount of solute present in the mixture is given by 300x25/100+400x40/100 , = 75 + 160 = 235 g Total amount of solution = 300 + 400 = 700 g 235/700x100% Therefore, mass percentage (w/w) of the solute in the resulting solution, = 33.57% And, mass percentage (w/w) of the solvent in the resulting solution, = (100 − 33.57)% = 66.43%

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»

Total amount of solute present in the mixture is given by

300x25/100+400x40/100

, = 75 + 160

= 235 g

Total amount of solution = 300 + 400 = 700 g

235/700x100%

Therefore, mass percentage (w/w) of the solute in the resulting solution,

= 33.57%

And, mass percentage (w/w) of the solvent in the resulting solution,

= (100 − 33.57)%

= 66.43%