1.3.2 Solubility

• What is solubility defined as?

  Maximum solute in solvent
• Match the solvent type with its corresponding solute type:

  Polar solvents ↔️ Polar solutes

  Nonpolar solvents ↔️ Nonpolar solutes
• Arrange the following steps to describe how to interpret a solubility curve:

  1️⃣ Identify the substance and its solubility curve

  2️⃣ Locate the temperature on the x-axis

  3️⃣ Find the corresponding solubility on the y-axis

  4️⃣ Determine the maximum amount of solute
• Give an example of how temperature affects the solubility of solids.

  Sugar dissolves better in hot water
• What type of solvents dissolve polar solutes?

  Polar solvents
• What happens to the solubility of solids as temperature increases?

  Increases
• Water is a polar solvent that dissolves polar solutes like salt
• What does a solubility curve show?

  Solubility vs temperature
• What happens to the solubility of gases as temperature increases?

  Decreases
• Understanding solubility helps in creating saturated solutions.


  True
• Which type of solvents dissolve nonpolar solutes?

  Nonpolar solvents
• Generally, the solubility of solids increases with increasing temperature
• How does temperature affect the solubility of gases?

  Decreases solubility
• The solubility of solid solutes generally increases as temperature increases
• Carbon dioxide loses fizz in warm soda because its solubility decreases.

  True
• Adding a common ion can increase the solubility of a substance.

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

  Increases it
• The presence of other substances always increases solubility.

  False
• The solubility of gases decreases as temperature increases
• What happens to the solubility of solids as temperature increases?

  Increases
• Increasing temperature increases the solubility of solid solutes like sugar
• Adding a common ion can decrease the solubility of a solute
• High pressure increases the solubility of gases in liquids.


  True
• Adding a common ion always increases the solubility of a substance.

  False
• What happens to the solubility of gases as temperature rises?

  Decreases
• Carbonated drinks are made by dissolving CO2 under high pressure
• Solubility is the maximum amount of a solute that can dissolve in a given quantity of solvent
• Match the factor with its influence on solubility:

  Temperature ↔️ Generally increases solubility for solids

  Pressure ↔️ Significantly increases solubility of gases

  Solvent Type ↔️ Determines what type of solutes dissolve

  Other Substances ↔️ Can alter solubility depending on interactions
• Solubility curves are only useful for determining the solubility of gases.

  False
• Why is high pressure used in carbonated drinks?

  To dissolve CO2