Question

A solution is obtained by mixing 300g of 25 of 25%solution and 400 g of 40%solutiinby mass .Calculate mass %of the resulting solrutin

Answer 1

Hey mate here's your answer

Total mass = 300 + 400 = 700gms

Individual mass of solute = 25% in 300 gm = 25/100 x 300 = 75gms

and for 400 gms = 40% of 400 = 40/100 x 400 = 160 gms

Thus total mass of solute = 75 +160 = 235 g

Mass percent = 235/700 x 100 = 33.57 %