Solutions Review

Which of these ionic compounds is most soluble in water?

• NaClO₃

• SrSO₄

• PbCl₂

• Ca(OH)₂

Which ion below always creates soluble ionic compounds, no matter what it is bonded with?

• K⁺

• Al⁺³

• SO₄^-2

• PO₄^-3

The chart below describes four trials of dissolving different solutes with various conditions in water at different temperatures of the water. Which of these trials would allow the greatest amount of solute to dissolve in water?

• Trial 1

• Trial 2

• Trial 3

• Trial 4

Which of the following ionic compounds is insoluble in water?

• NaNO₃

• Al₂(SO₄)₃

• CaCl₂

• MgCrO₄

Which of the following compounds would form an insoluble precipitate in water?

• KCl

• RbOH

• BaSO₄

• (NH₄)₂S

What is the molarity of 83.0 grams of KI dissolved in 500.0 mL of water?

• 0.500 M

• 1.00 M

• 1.50 M

• 2.00 M

A solution that has a molarity of 1.50 M needs to be diluted to create 75.0 mL of a 0.250 M solution. How much of the 1.50 M solution should be used to make this dilution?

• 12.5 mL

• 62.5 mL

• 112 mL

• 450 mL

In order for a solution to be an electrolyte, the solute must

• be a molecular compound.

• restrict the flow of electricity.

• create a saturated solution.

• consist of positive and negative ions.

The best description of a supersaturated solution is a solution that–

• contains more solute than is normally possible.

• has equal amounts of solute and solvent.

• could possibly dissolve more solute.

• has dissolved the maximum amount of solute.

15 g of sugar cubes are dissolved in 120 g of water at 20o C. What could be done to increase the rate of dissolution?

• Use larger sugar cubes

• Stir the mixture

• Cool down the water

• Add an electrolyte to the water