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Directions: Solve the following problem by completing the 3 - step procedure.

1. Suppose a solution was prepared by dissolving 20 g of NaCl (sodium chloride) into 100 g of water. Calculate for the percentage by mass composition of the solution

1) Given; Solvent: Solute: Solution:



2) Formula:


3) Substitute the value of mass of solute and mass of solution from step 1:

Percent by mass =


Percent by mass =​