Conjugate Acids & Bases

Which of the following show an acid and its conjugate base pair (in that order)

• H₂SO₄, SO₄^2-

• OH^-, H₂O

• NH₄⁺, H₂O

• H₂CO₃, HCO₃^-

According to Bronsted-Lowry, what is the definition of an BASE?

• a substance that donates a hydrogen (H+) ion

• a substance that donates a hydroxide (OH-) ion

• a substance that accepts a hydrogen (H+) ion

• a substance that accepts a hydroxide (OH-) ion

What is being donated/accepted between conjugate acid-base pairs?

• a hydrogen (H+) ion

• a hydroxide (OH-) ion

• water

• a neutron

What is the conjugate acid to OH^- ?

• H₂O

• OH^-
• H⁺
• This does not have a CA.

NH₃ + H₂O --> NH₄⁺ + OH^-

What is NH₄⁺ in this reaction?

• acid

• base

• conjugate acid

• conjugate base

In the equation below, what is the conjugate base?

HBr + H₂O ↔ Br^- + H₃O⁺

• HBr

• H₂O

• Br^-

• H₃O⁺