Concentration and Volume Relationships

What is the primary method to increase the concentration of a solution without adding more solute?

• Dilution

• Evaporation

• Filtration

• Distillation

In the saline solution problem, what was the initial concentration of the solution?

• 20%

• 10%

• 15%

• 25%

After losing 400 ml of water, what is the new concentration of the saline solution?

• 30%

• 40%

• 45%

• 35%

What formula is used to calculate the concentration of a solution after evaporation?

• M1V1 = M2V2

• C1V1 = C2V2

• D1V1 = D2V2

• P1V1 = P2V2

In the sucrose solution problem, what was the initial volume of the solution?

• 400 ounces

• 100 ounces

• 200 ounces

• 300 ounces

What is the new concentration of the sucrose solution after evaporation?

• 24%

• 20%

• 28%

• 16%

How much water must be evaporated from a 200 ml 6% salt solution to achieve a 30% concentration?

• 160 ml

• 140 ml

• 180 ml

• 120 ml

What is the final volume of the salt solution after evaporation?

• 20 ml

• 30 ml

• 40 ml

• 50 ml

If the concentration of a solution increases by a factor of 5, by what factor does the volume decrease?

• 5

• 4

• 3

• 2

What is the relationship between volume and concentration in solutions?

• Exponentially related

• Unrelated

• Inversely proportional

• Directly proportional