Chemistry Quiz on Solutions and Solubility

What is the term for a solution that contains more solute than it can theoretically hold at a given temperature?

• Dilute solution

• Supersaturated solution

• Unsaturated solution

• Saturated solution

Which of the following is a colligative property?

• Color

• Viscosity

• Boiling Point Elevation

• Density

What happens to the boiling point of a solution when a solute is added?

• It decreases

• It remains the same

• It increases

• It fluctuates

What would happen to a supersaturated solution if you disturb it by adding more solute pieces.

• Nothing

• The added solute would simply sink to the bottom.

• The extra solute would crystallize out of solution.

• It would dissolve into the solution.

Which aqueous solution has the highest boiling point at standard pressure?

• 1.0M KCl _(aq)

• 1.0M CaCl_{2 (aq)}

• 2.0M KCl _(aq)

• 2.0M CaCl_{2 (aq)}

Answer explanation

Colligative properties depend on the concentration and the number of particles produced in solution.

2.0 M CaCl₂ produces 3 moles of ions compared to KCl and is more concentrated than 1.0M

When KCl (potassium chloride) is dissolved in water, how many particles are in solution?

• 1

• 2

• 3

• 4

• 6

When CaBr₂ is dissolved in water, how many particles will be in solution?

• 1

• 2

• 3

• 4

• 5

At standard pressure when NaCl is added to water, the solution will have a

• higher freezing point and a lower boiling point than water

• higher freezing point and a higher boiling point than water

• lower freezing point and a higher boiling point than water

• lower freezing point and a lower boiling point than water

How do the boiling point and freezing point of a solution of water and calcium chloride at standard pressure compare to the boiling point and freezing point of water at standard pressure?

• Both the freezing point and boiling point of the solution are higher.

• Both the freezing point and boiling point of the solution are lower.

• The freezing point of the solution is higher and the boiling point of the solution is lower.

• The freezing point of the solution is lower and the boiling point of the solution is higher.

If we have a saturated solution with a solubility at a 100g of H₂O, what do we do to convert this to 200g of H₂O?

• multiply by 2

• divide by 2