Solubility and Solution Characteristics

The video tutorial covers types of solutions, including saturated, unsaturated, and supersaturated solutions. It explains how to use Reference Table G to understand solubility curves and solve related problems. The tutorial also discusses the impact of temperature on solubility and precipitation, providing practical examples with sodium chloride and copper sulfate. Key concepts include understanding equilibrium in solutions and the relationship between solubility and temperature.

What is the main characteristic of a supersaturated solution?

• It contains more solute than can be dissolved, leading to precipitation.

• It contains no solute.

• It contains the maximum amount of solute that can be dissolved.

• It contains less solute than can be dissolved.

How can you determine if a solution is saturated?

• By adding more solvent.

• By adding more solute until no more dissolves.

• By heating the solution.

• By cooling the solution.

What does the y-axis represent on a solubility curve?

• Pressure of the solution.

• Temperature in Celsius.

• Grams of solute per 100 grams of water.

• Volume of solvent.

How does temperature affect the solubility of potassium chloride?

• Solubility decreases with decreasing temperature.

• Solubility increases with increasing temperature.

• Solubility remains constant with temperature changes.

• Solubility decreases with increasing temperature.

If you have 100 grams of water at 75°C, how many grams of potassium chloride can be dissolved?

• 90 grams

• 30 grams

• 50 grams

• 70 grams

What happens to a supersaturated solution if it is disturbed?

• It becomes unsaturated.

• It remains supersaturated.

• It dissolves completely.

• It crystallizes and becomes saturated.

How do you calculate the amount of precipitate formed when cooling a solution?

• Multiply the solubility at both temperatures.

• Divide the solubility at the higher temperature by the solubility at the lower temperature.

• Add the solubility at both temperatures.

• Subtract the solubility at the lower temperature from the solubility at the higher temperature.

What is the solubility trend for ionic compounds as temperature increases?

• Solubility remains constant.

• Solubility increases.

• Solubility fluctuates randomly.

• Solubility decreases.

Which type of compounds have a negative slope on a solubility curve?

• Ionic compounds

• Covalent compounds

• Metallic compounds

• All compounds

Which compound is most soluble according to Table G?

• CaCO3

• KNO3

• NaCl

• KI