Chem B Solutions Review

A mixture with more solute dissolved in the solvent than is usually soluble is called:

• concentrated

• supersaturated

• saturated

• unsaturated

What is the universal solvent?

• salt
• sugar
• water
• ice

When you have added as much solute as can dissolve in the solvent, the solution is called:

• concentrated

• supersaturated

• saturated

• unsaturated

Which of the following is NOT a unit used to express concentration?

• Molality

• Molarity

• Mass percent

• Density

The moles of solute can be determined by multiplying the molarity of the solute by the volume of solvent.

• True

• False

The formula M₁V₁ = M₂V₂ is used when:

• dissolving a solute in a solvent

• diluting a solution

• reacting an acid with a base

• determining the pH of an acid

Which substance is MOST soluble at 0 ºC?

• KI
• NaNO₃
• NaCl
• Ce₂(SO₄)₃

How does a solution become supersaturated?

• Vigorous stirring to dissolve more solute than usual.

• Heat the solution to increase the solute then let it cool.

• Add more solvent to lower the concentration.

• Keep pouring solute in the solvent until it goes in.

When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated
• unsaturated
• saturated

The amount of solute actually dissolved in a given amount of solvent.

• dilution
• concentration
• saturated solution
• supersaturated mixture