Review of Mixtures, Solubility, Concentration, Acids and Bases

This flashcard set contains questions and answers reviewing key concepts related to mixtures, solubility, concentration, acids, and bases.

What is a mixture?

A physical combination of two or more substances.

Define heterogeneous mixtures.

Mixtures with no definite or uniform composition.

What is a colloid?

A mixture where particles do not settle out and do not scatter light.

What is a solution?

A homogeneous mixture where two or more substances are in a single phase with a uniform appearance.

What does 'like dissolves like' mean?

Polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes.

What is the definition of solubility?

The maximum amount of solute that can be dissolved in a given amount of solvent at a certain temperature.

What is molarity?

The number of moles of solute in one liter of solution.

What does pH represent?

The power of the hydronium ion concentration in a solution.

What are properties of acids?

Acids have a pH lower than 7, taste sour, and turn blue litmus red.

What are properties of bases?

Bases have a pH greater than 7, taste bitter, and turn red litmus blue.

What occurs in a neutralization reaction?

An acid reacts with a base to produce water and a salt.

What is the formula for calculating pH?

pH = -log[H3O+]