1. Which statement is NOT correct about the concentration of solutions?
A.The percent by volume is the ratio of the volume of solute to volume of solution
B.The percent by mass is the ratio of the mass of solute to mass of solution.
C.The concentration of a solution is the ratio of solute to solvent.
D.The concentration of a solution is ratio of solvent to the given amount of solution

2.Which refers to a solution that contains a small amount of solute in a large amount of solvent?
A.concentrated
B.supersaturated
C.saturated
D.dilute

3.How does temperature affect solubility?
A.Solubility increases with an increase in temperature
B.Solubility is not affected by temperature.
C.Solubility decreases with an increase in temperature.
D.Solubility decreases with a decrease in temperature.

4.What do you call a substance that cannot be dissolved in a solvent?
A.solute
B.insoluble
C.soluble
D.solution

5.Student A mixed 10 grams of solute with 90 grams of solvent. What is the percent by mass of this solution?

6.What is the percent by volume of a 250 mL solution that contains 5 mL of solute?

7.Find the percent by volume of a 175 mL methanol in a 500 mL solution? *

8.2mL of acetic acid is used to prepare 5mL of vinegar. What is the percentage by volume of the solution? *

9.How many grams(g) of NaCl are required to prepare 7% by mass of 100g solution? ​