Chem Acid/Base Test Review

In the reaction NH₃ + HCl ⇌ NH₄⁺ + Cl⁻, the ammonia ion (NH₃) is acting as a(n) ___.

• Brønsted-Lowry base

• Arrhenius base

• Brønsted-Lowry acid

• Arrhenius acid

If the H⁺ concentration of an aqueous solution is 1 × 10⁻³ M, what will be the pOH of the solution?

• 1 x 10⁻¹⁰ M

• 4

• 1 x 10⁻⁴ M

• 3

Which of the following is a property of an acid?

• turns litmus paper blue

• sour taste

• unreactive

• strong color

Which of the following represents a Brønsted-Lowry conjugate acid-base pair?

• SO₃²⁻ and SO₂

• H₃O and H₂

• HCl and Cl^-

• CO₃²⁻ and CO

If the OH^- ion concentration of an aqueous solution is 1.00 × 10⁻⁹ M, what is the pH of the solution?

• 4.00

• 3.99

• 3.82

• −4.04

The pH scale allows scientists to define the acidity or alkalinity of a substance on a scale of _____.

• 1-7

• 0-14

• 7-14

• 0-7

A __________________ is the species produced when a base accepts a hydrogen ion from an acid.

• conjugate acid

• conjugate base

• base

• acid

Which of these solutions is the most basic?

• [H⁺] = 1 x 10⁻² M

• [OH⁻] = 1 x 10⁻¹³ M

• [H⁺] = 1 x 10⁻¹¹ M

• [OH⁻] = 1 x 10⁻⁴ M

Name the conjugate base for this reaction.

HSO₄ + H₂O --> SO₄ + H₃O

• HSO₄

• SO₄

• H₃O

• H₂O

When an acid reacts with a base, the reaction is called a ______ reaction.

• combination

• combustion

• decomposition

• neutralization