Strong Acids and Bases

Which compound is a strong acid?

• NH₃

• HNO₃

• H₂CO₃

• CH₃COOH

Which of the following is the correct definition for a strong acid?

• Partially dissociates into ions when dissolved in water and the change is not reversible

• Fully dissociates into ions when dissolved in water and the change is not reversible

• Fully dissociates into ions when dissolved in water and the change is reversible

• Partially dissociates into ions when dissolved in water and the change is reversible

Strong acids and bases...

• do not break apart into ions (non-electrolyte)

• partially break apart into ions (weak electrolyte)

• completely break apart into ions (non-electrolyte)

• completely break apart into ions (strong electrolyte)

Aqueous solutions of a weak acid and a strong acid of equal concentration are compared. Which statements are correct?

I. The weak acid is less dissociated than the strong acid.

II. The strong acid reacts with a metal oxide but the weak acid does not.

III. The strong acid has greater conductivity than the weak acid.

• I and II only

• I and III only

• II and III only

• I, II and III

Which of the following acids will conduct electricity the best?

• Ethanoic acid

• Nitric acid

• Carbonic acid

• Citric acid

Which 1.0 mol dm–3 solution has the highest pH?

• A. Ammonium chloride

• B. Sulfuric acid

• C. Sodium chloride

• D. Ammonia

Which of the following is a strong acid?

• Ethanoic acid

• Nitric acid

• Carbonic acid

• Citric acid

Which of the following is the correct balanced equation showing the dissociation of sulfuric acid into ions?

• H₂SO₄ (aq) → H⁺ (aq) + SO₄^–(aq)

• H₂SO₄ (aq) ⇌ 2H⁺ (aq) + SO₄^2- (aq)

• HSO₄ (aq) → H⁺(aq) + SO₄^–(aq)

• H₂SO₄ (aq) → 2H⁺ (aq) + SO₄^2- (aq)

Tags

NGSS.HS-PS1-2

Which of the following is NOT a strong acid

• Sulfuric acid

• Hydrochloric acid

• Perchloric acid

• Hydrofluoric acid

Which of the following is a strong base?

• Ammonia (NH_3)

• Sodium hydroxide (NaOH)

• Calcium carbonate (CaCO_3)

• Acetic acid (CH_3COOH)