Solubility Curves

What is the effect of pressure on the solubility of gases?

• Increasing pressure decreases the solubility of gases in liquids.

• Increasing pressure has no effect on the solubility of gases in liquids.

• Increasing pressure increases the solubility of gases in liquids.

• Increasing pressure only affects the solubility of solids, not gases.

What is the definition of solute?

• A substance that is dissolved in a solvent to form a solution.

• A liquid that dissolves a solute.

• A mixture of two or more substances.

• A solid that cannot dissolve in any liquid.

How can you determine if a solution is saturated?

• If the solution is at room temperature

• If additional solute is added and it does not dissolve

• If the solution is clear and colorless

• If the solute is completely dissolved

How does temperature affect solubility?

• Solubility generally increases with temperature for most solids and decreases for gases.

• Solubility is not affected by temperature changes.

• Solubility decreases for most solids and increases for gases.

• Temperature has no effect on the solubility of liquids.

What is a supersaturated solution?

• A solution that contains less dissolved solute than what is possible at a given temperature; it is stable.

• A solution that contains exactly the maximum amount of dissolved solute at a given temperature; it is stable.

• A solution that contains more dissolved solute than what is possible at a given temperature; it is unstable.

• A solution that contains no dissolved solute; it is unstable.

What is the formula for calculating solubility?

• Solubility (g/100g of solvent) = (mass of solute / mass of solvent) x 100.

• Solubility = mass of solute + mass of solvent.

• Solubility = mass of solvent / mass of solute.

• Solubility = (mass of solute - mass of solvent) x 100.

What is the solubility of K2Cr2O7 at 95 ºC?

• 50 grams per 100 grams of water.

• 75 grams per 100 grams of water.

• 100 grams per 100 grams of water.

• 25 grams per 100 grams of water.

What is a solubility curve?

• A graph that shows the relationship between the solubility of a substance and temperature, indicating how much solute can dissolve in a solvent at various temperatures.

• A chart that lists the solubility of different substances in water at room temperature.

• A diagram that illustrates the chemical reactions of solutes in a solvent.

• A table that compares the boiling points of various solvents.

What is the significance of a solubility table?

• It provides information on the solubility of various substances at different temperatures, helping predict how much solute can dissolve.

• It lists all known chemical reactions and their products.

• It indicates the boiling points of different substances under various conditions.

• It shows the pH levels of various solutions at different temperatures.

Define saturated solution.

• A solution in which no more solute can dissolve at a given temperature; it is in equilibrium with undissolved solute.

• A solution that contains more solute than can be dissolved at a given temperature.

• A solution that has a uniform composition throughout and contains only one phase.

• A solution that can dissolve additional solute at a given temperature.