Ch. 12 Review

All solutions are...

• Homogeneous mixture

• Heterogeneous mixture

• Compound

• Pure element

Salt, pepper, water, and oil are mixed in a cup. Salt is considered....

• Solvent

• Solute

• Solution

• Saturated

In the given equation, the denominator (marked as ?) is.....

• mass of solvent

• mass of solution

• mol of solvent

• mol of solution

Moles of solute per kilogram of solvent is called....

• Mass percent

• Mole fraction

• Molality

• Molarity

Which of the following will NOT change the concentration of solution?

• Adding solute to the solution

• Adding solvent to the solution

• Removing solvent from the solution

• Adding more of same solution

The solubility of MOST solids increases when temperature ______ and surface area _____.

• increases, increases

• increases, decreases

• decreases, increases

• decreases, decreases

When pressure increases, the solubility of solid solutes....

• increases

• decreases

• remains the same

• is unpredictable

Mr. Lee added chocolate powder to his hot chocolate but did not dissolve. For sure, this is...

• Supersaturated

• Unsaturated

• Diluted

• Saturated

According to the picture shown, solubility and temperature are always directly proportional.

• Yes

• No

At 10 °C, which solute has the highest solubility?

• Sodium nitrate

• Potassium chlorate

• Sodium chloride

• Calcium chloride