Understanding Solubility and Solutions

What is the role of a solvent in a solution?

• To decrease the solution's temperature

• To act as a catalyst

• To increase the volume of the solution

• To dissolve the solute

Which of the following is a characteristic of a homogeneous mixture?

• Visible boundaries between components

• Components that separate over time

• Uniform composition throughout

• Different phases of matter

What does solubility refer to?

• The temperature at which a solution boils

• The ability of a solvent to dissolve a solute

• The pressure required to form a solution

• The volume of solvent needed to dissolve a solute

Which factor does NOT affect the solubility of a substance?

• Type of solvent

• Color of the solute

• Temperature

• Pressure

What unit is commonly used to express solubility?

• Grams per 100 ml of solvent

• Liters per mole of solute

• Cubic meters per kilogram

• Pounds per gallon

Which compound had a higher solubility in the experiment discussed?

• Cobalt chloride (CoCl2)

• Calcium carbonate (CaCO3)

• Potassium permanganate (KMnO4)

• Sodium chloride (NaCl)

Which of the following is NOT a unit for measuring solubility?

• Parts per million (ppm)

• Inches per cubic foot

• Moles per liter

• Grams per liter

If a solution can still dissolve more solute, it is called:

• Diluted

• Unsaturated

• Supersaturated

• Saturated

What happens when you add more solute to a saturated solution at the same temperature?

• The solution becomes unsaturated

• No more solute can dissolve

• The temperature of the solution increases

• It dissolves completely

What is a supersaturated solution?

• A solution that cannot dissolve any solute

• A solution with less solute than it can potentially hold

• A solution that contains more solute than it can stably hold under normal conditions

• A solution that changes color when more solute is added