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Direction: Answer the given problem below. Write your answer on the table 1. A solution is prepared by mixing 30 g of Sodium Chloride (salt) in 90 g of water. What is the concentration of the solution in percent by mass? Given Volume of solute Mass of solvent Mass of solution Find Formula Solution/ Substitution Final Answer​

Sagot :

TOKAMAKIN

Given:

mass of solute = 30 g

mass of solvent = 90 g

Find:

percent by mass

Formula:

[tex]\text{percent by mass} = \dfrac{\text{mass of solute}}{\text{mass of solute + mass of solvent}} \times 100\%[/tex]

Solution/Substitution:

[tex]\text{percent by mass} = \dfrac{\text{30 g}}{\text{30 g + 90 g}} \times 100\%[/tex]

Final Answer:

percent by mass = 25%

[tex]\\[/tex]

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