Question

calculate the percentage composition of a solute in a solution obtained by mixing 200g of a 20percent and 300g of a 30percent solution by weight​

Answer 1

Step-by-step explanation:

Given Calculate the percentage composition of a solute in a solution obtained b mixing 200 g of a 20 percent and 300 g of a 30 percent solution by weight  

• So mass of solute in 200 g of 20 % solution will be = 20 / 100 x 200 = 40 g
• So mass of solute in 300 g of 30 % solution will be = 30 / 100 x 300 = 90 g
• Total solute mass = 130 g
• Total solvent mass = 500 g
• We know that mass percentage of solute = mass of solute / mass of solution x 100

So mass % = 130 / 500 x 100 = 26%