Conjugate Acid and Base

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

• NH₃

• NH₄⁺

• Cl^-

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

• a hydrogen (H+) ion

• a hydroxide (OH-) ion

• water

• a neutron

Which of the following shows the correct conjugate acid base pair?

• HCI (acid) / H₃O⁺ (conjugate base)

• HCI (acid) / CI^- (conjugate base)

• HCI (base) / CI^- (conjugate acid)

• HCI (base) / H₃O⁺ (conjugate acid)

Acid-base conjugate pairs differ by a single

• Electron

• Proton

• Neutron

• Oxygen

What is the conjugate base of hydrochloric acid (HCl)?

• Chloride ion (Cl-)

• Hydronium ion (H3O+)

• Hydroxide ion (OH-)

• Water (H2O)

In the reaction of ammonia (NH3) with water, what is the conjugate acid of ammonia?

• Ammonium ion (NH4+)

• Hydroxide ion (OH-)

• Water (H2O)

• Hydronium ion (H3O+)

Which of the following is a characteristic of a conjugate acid-base pair?

• They differ by one proton

• They differ by one electron

• They differ by one neutron

• They differ by one oxygen atom

What is the conjugate acid of the bicarbonate ion (HCO3-)?

• Carbonic acid (H2CO3)

• Carbonate ion (CO3^2-)

• Hydroxide ion (OH-)

• Water (H2O)

In the reaction between acetic acid (CH3COOH) and water, what is the conjugate base of acetic acid?

• Acetate ion (CH3COO-)

• Hydronium ion (H3O+)

• Hydroxide ion (OH-)

• Water (H2O)

Which of the following pairs is an example of a conjugate acid-base pair?

• NH4+/NH3

• H2O/OH-

• HCl/Cl-

• All of the above