Answer : The percent by mass of the solution is 7.81 %
Explanation : Given,
Mass of NaCl = 8.75 g
Mass of solution = 112.0 g
Now we have to determine the percent by mass of the solution.
[tex]\text{Mass percent}=\frac{\text{Mass of NaCl}}{\text{Mass of solution}}\times 100[/tex]
Putting values in above equation, we get:
[tex]\text{Mass percent}=\frac{8.75g}{112.0g}\times 100=7.81\%[/tex]
Therefore, the percent by mass of the solution is 7.81 %