Exploring Saturation and Solubility Curves

What type of solution can still dissolve more solute?

• Supersaturated

• Unsaturated

• Saturated

• None of the above

What happens to a supersaturated solution when conditions revert to normal?

• Crystals form

• It evaporates

• It becomes unsaturated

• No change occurs

Which factor can increase the solubility of a solute in a solvent?

• All of the above

• Decreasing pressure

• Decreasing temperature

• Increasing temperature

What effect does increasing pressure have on the solubility of gases in liquids?

• Decreases solubility

• Increases solubility

• Varies with temperature

• No effect

At what temperature and amount is KNO3 saturated according to the solubility curve?

• 50 degrees Celsius, 90 grams

• 60 degrees Celsius, 45 grams

• 25 degrees Celsius, 50 grams

• 90 degrees Celsius, 20 grams

What does the line on a solubility curve represent?

• Unsaturated solution

• Supersaturated solution

• Saturated solution

• None of the above

How can you create a supersaturated solution?

• Cool the solution rapidly

• Heat the solution and then cool it slowly

• Decrease the pressure

• Add more solute at room temperature

What is the state of a solution with 50 grams of KNO3 at 25 degrees Celsius?

• Cannot be determined

• Supersaturated

• Unsaturated

• Saturated

What happens if you add a crystal to a supersaturated solution?

• It dissolves completely

• It remains unchanged

• It evaporates

• It triggers crystallization

At 90 degrees Celsius, how would you describe a solution with 20 grams of CaCl2?

• None of the above

• Unsaturated

• Saturated

• Supersaturated