Answer:
14.9%m/m
Explanation:
The percent m/m concentration of a solution (%m/m) indicates the grams of solute there are in 100 g of solution. It can be calculated as follows:
[tex]%m/m= \frac{mass of solute (g)}{mass of solution(g)} x 100[/tex]%m/m= mass of solute(g)/mass of solution(g) x 100
As the solution is composed by solute + solvent, the mathematical expression can be transformed in:
[tex]%m/m= \frac{mass of solute (g)}{mass of solution(g)} x 100[/tex]%m/m= mass of solute(g)/(mass of solute + mass of solvent (g) )x 100
= 24.34 g[tex]%m/m= \frac{mass of solute (g)}{mass of solution(g)} x 100[/tex]/(24.34 g + 138.87 g) x 100
= 24.34 g/(163.21 g) x 100
= 14.9%
[tex]%m/m= \frac{mass of solute (g)}{mass of solution} x 100 = \frac{mass of solute (g)}{mass of solute (g) + mass of solvent (g)}[/tex]
