Question

Calculate the mass of water required to make 200gm of 25% solution of glucose.

Answer 1

Given mass of solution (M) = 200g

Concentration of solution = 25%

Since, Mass by Mass percentage of solution = $\frac{massofsolute\left(m\right)}{massofsolution\left(M\right)}\times 100$

$\Rightarrow$ 25 = $\frac{m}{200}\times 100$

$\Rightarrow$ m = $\frac{25}{100}\times 200$ = 50gm

$\Rightarrow$ Mass of solute = 50gm

Mass of solvent (water) = M - m = 200g - 50g = 150gm