Acids and Bases

Which compound is the conjugate acid? (Hint: Determine the base)

PO₄^3- + HNO₃ ==> NO₃^- + HPO₄^2-

• PO₄^3-

• HNO₃

• NO₃^-

• HPO₄^2-

Which compound is the conjugate base?

HCO₃^- + HCl ==> H₂CO₃ + Cl^-

• HCO₃^-

• HCl

• H₂CO₃

• Cl^-

NH₃ + H₂O --> NH₄⁺ + OH^-

What is H₂O in this reaction?

• acid

• base

• conjugate acid

• conjugate base

In the reaction below, H₂O is a(n):

H₂SO₃ + H₂O --> H₃O⁺ + HSO₃^-

• base

• acid

• conjugate acid

• conjugate base

In the reaction HCl + H₂O --> H₃O⁺ + Cl^-, what is the conjugate acid?

• HCl
• H₂O
• H₃O⁺
• Cl^-

HSO₄^- + H₂O → H₃O⁺+ SO₄^2-
Identify the Acid in the above reaction.

• HSO₄^-
• H₂O
• H₃O⁺
• SO₄^2-

According to Brønsted-Lowry acid base theory, an acid ___.

• is a proton donor

• is a proton acceptor

• produces H⁺ when added to water

• turns phenolphthalein pink

Which reactant in the following equation is acting as a Brønsted-Lowry acid?

• ammonium

• ammonia

• hydroxide

• water

Given the reaction above, which compound is the conjugate base?

• NH₃

• NH₄⁺

• Cl^-

What is NH₄⁺ classified as?

• Acid

• Base

• Conjugate Acid

• Conjugate Base