Sagot :
Given:
mass of solute = 25 g
mass of solvent = 120 g
Required:
percent by mass
Computation:
[tex]\text{percent by mass} = \dfrac{\text{mass of solute}}{\text{mass of solute + mass of solvent}} \times 100\%[/tex]
[tex]\text{percent by mass} = \dfrac{\text{25 g}}{\text{25 g + 120 g}} \times 100\%[/tex]
Final Answer:
percent by mass = 17.2%
[tex]\\[/tex]
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