Percent by mass is a measurement of the concentration of a solute dissolved in a solution. It is calculated by taking the mass of the solute divided by the total mass of the solution and multiplying by 100. Examples are provided of calculating percent by mass for solutions containing sugar, salt, orange juice powder in water. The mass of the solute is divided by the total mass and multiplied by 100 to determine the concentration as a percentage.

2. Percent by
Mass and
Volume

3. Percent by Mass
-Percent by mass is the ratio of the mass of the
solute with the mass of the solution
Formula:

4. Example
1. A 300 grams sugar solution contains
15 grams sugar. What is the percent by
mass of the solute in the solution?

5. Solve
1. A 150 grams salt solution contains 25
grams sugar. What is the percent by
mass of the solute in the solution?

6. Solve
2. A saline solution with a mass of 355 g
has 36 g of NaCl dissolved in it. What is
the mass/mass percent concentration of
the solution?

7. Example:
2. You prepared an orange juice by
adding 75 grams of powdered juice to
175 grams of water. Determine the
percent by mass of the solution.

8. Solve:
1.A solution was prepared by dissolving
25.0 g of sugar into 100. 0 g of water.
What is the percent by mass of a
solution

9. Solve:
1.Suppose a solution was prepared by
mixing 20 g of sugar into 75 g of water.
What is the percent by mass of a
solution?

10. Solve
What is the percent by mass of a solution
if a solution if it has 5 g of salt for every
95 g of water?