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# 10 g of a solute is dissolved in 90 g of solvent. If the density of solution is 2g/ml, find the weight-volume percentage.

The volume of the solution = $\large\frac{\text{Mass of the solution}}{\text{density of the solution}}=\frac{100}{2}$$=50ml We know, weight – volume percentage =\large\frac{\text{Weight of solute}}{\text{Volume of solution}}$$\times 100$
Weight – volume % =$\large\frac{10}{5}$$\times 100 = 20$