Answer:
3.90
Explanation:
Given: 4.35 g (mass of solute)
105 g (mass of solvent)
Required: percent by mass
Formula: % by mass = [tex]\frac{mass of solute}{mass of solution}[/tex] × 100
Solution: % by mass = [tex]\frac{4.35}{(4.35 + 105)}[/tex]
% by mass = [tex]\frac{4.35}{109.35}[/tex] × 100
% by mass = 0.039 × 100
% by mass = 3.90
NOTE:
I'm not 100% sure if my answer is correct, so if it's wrong I apologize.
