4.8 Acid-Base Reactions

Which one of the following is a weak acid?

• HNO₃

• HI

• HBr

• HF

• HClO₃

Which one of the following is a strong electrolyte? (Strong electrolytes dissociate easily in water.)

• H₂O

• KF

• HF

• HNO₂

• (CH₃)₃N

Which one of the following is a weak base?

• HNO₃

• LiCl

• NH₃

• HF

• NaOH

In the equation HCl + NH₃ ⇌ NH₄⁺ + Cl⁻, which of the following correctly identifies the acid, base, conjugate acid, and conjugate base?

• Acid: HCl, Base: NH₃, Conjugate Acid: NH₄⁺, Conjugate Base: Cl⁻

• Acid: NH₃, Base: HCl, Conjugate Acid: Cl⁻, Conjugate Base: NH₄⁺

• Acid: NH₄⁺, Base: Cl⁻, Conjugate Acid: HCl, Conjugate Base: NH₃

• Acid: Cl⁻, Base: NH₄⁺, Conjugate Acid: NH₃, Conjugate Base: HCl

In the equation NH₄⁺ + H₂O ⇌ NH₃ + H₃O⁺, which of the following correctly identifies the acid, base, conjugate acid, and conjugate base?

• Acid: NH₄⁺, Base: H₂O, Conjugate Acid: H₃O⁺, Conjugate Base: NH₃

• Acid: NH₃, Base: H₃O⁺, Conjugate Acid: NH₄⁺, Conjugate Base: H₂O

• Acid: H₂O, Base: NH₄⁺, Conjugate Acid: NH₃, Conjugate Base: H₃O⁺

• Acid: H₃O⁺, Base: NH₃, Conjugate Acid: H₂O, Conjugate Base: NH₄⁺

In the equation NH₃ + H₂O ⇌ NH₄⁺ + OH⁻, which of the following correctly identifies the acid, base, conjugate acid, and conjugate base?

• NH₃: base, H₂O: acid, NH₄⁺: conjugate acid, OH⁻: conjugate base

• NH₃: acid, H₂O: base, NH₄⁺: conjugate base, OH⁻: conjugate acid

• NH₃: base, H₂O: acid, NH₄⁺: conjugate base, OH⁻: conjugate acid

• NH₃: acid, H₂O: base, NH₄⁺: conjugate acid, OH⁻: conjugate base

In the equation HNO₃ + H₂O ⇌ H₃O⁺ + NO₃⁻, which of the following correctly identifies the acid, base, conjugate acid, and conjugate base?

• Acid: HNO₃, Base: H₂O, Conjugate Acid: H₃O⁺, Conjugate Base: NO₃⁻

• Acid: H₂O, Base: HNO₃, Conjugate Acid: NO₃⁻, Conjugate Base: H₃O⁺

• Acid: HNO₃, Base: NO₃⁻, Conjugate Acid: H₂O, Conjugate Base: H₃O⁺

• Acid: H₃O⁺, Base: NO₃⁻, Conjugate Acid: HNO₃, Conjugate Base: H₂O

Complete the following chemical equation: NH₃ + HCl ⇌ ______ + Cl⁻

• NH₄⁺

• NH₂⁻

• NH₄Cl

• NH₂Cl

Complete the following chemical equation: HC₂H₃O₂ + OH⁻ ⇌ C₂H₃O₂⁻ + ______

• H₂O

• O₂

• CO₂

• H₂

Complete the following chemical equation: CH₃CO₂H(l) + H₂O(l) ⇌ ?

• CH₃CO₂⁻(aq) + H₃O⁺(aq)

• CH₃CO₂H(aq) + H₂O(aq)

• CH₄(g) + CO₂(g)

• CH₃CO₂⁻(aq) + OH⁻(aq)