Chem Unit 11 Review

Which statement about Arrhenius acids is FALSE?

• Their water solutions are called aqueous acids.

• They are molecular compounds with ionizable hydrogen atoms

• Their pure aqueous solutions are electrolytes.

• They increase the concentration of hydroxide ions in aqueous solution

Strong bases are

• strong electrolytes.

• weak electrolytes.

• nonelectrolytes.

• also strong acids.

Whose definition of acids and bases emphasizes the role of protons?

• Lewis

• Arrhenius

• Faraday

• Brønsted and Lowry

An electron-pair acceptor is a

• Brønsted-Lowry base

• Lewis acid.

• Lewis base

• traditional acid.

What is the pH of a 1 x 10⁻⁴ M HCl solution?

• 10

• 8

• 4

• 6

A solution with a pH of 5.0 _____.

• has a hydroxide-ion concentration of 1 x 10 –9 M

• is neutral

• has a hydrogen-ion concentration of 5.0M

• is basic

What is the pH when the hydrogen ion concentration is 1 x 10 ⁻³ M

• 3.3

• 3

• 2.7

• 2

Which type of solution is one with a pH of 8?

• acidic

• You cannot determine the answer with the information provided.

• neutral

• basic

Bases react with

• water to produce acids and salts.

• salts to produce acids and water.

• acids to produce salts and water

• neither acids, salts, nor water.

Bases feel

• slippery.

• dry.

• moist.

• rough.