Solutions

A solution is a

• heterogeneous mixture

• heterogeneous compound

• homogeneous mixture

• homogeneous compound

Which statement is true?

• The first steps of solvation release energy, whereas the mixing process absorbs energy.

• All aspects of solvation release thermal energy.

• The first steps of solvation absorb energy, whereas the mixing process releases energy.

• All aspects of solvation absorb thermal energy.

Tags

NGSS.HS-PS3-4

Which of the following substances would you expect to be more soluble in a nonpolar solvent such as gasoline?

• water

• ammonia (polar)

• paraffin (nonpolar)

• none of these

The rate of solution of glucose in water will not be increased by

• stirring

• higher temperature

• higher pressure

• increased surface area

When one mole of LiBr is dissolved in one kg of water, the concentration of the bromine is

• 0.5 molal

• 0.5 molar

• 1.0 molal

• 1.0 molar

The molarity of a solute in a solution is the number of

• moles of solute per liter of solution.

• grams of solute per liter of solution.

• moles of solute per kilogram of solution.

• moles of solute per kilogram of solvent.

Tags

NGSS.HS-PS1-5

Which of the following is not a colligative property of a solution?

• freezing point

• boiling point

• vapor pressure

• color

Which of the following can be used to distinguish colloids from solutions?

• Tyndall Effect

• effervescence

• Henry's law

• colligative properties

Which of the following is not an example of a colloid?

• whipped cream

• mayonnaise

• fruit punch

• cheese

The escape of a gas from a liquid-gas solution is called

• dissolving

• effervescence

• ionization

• dissociation