Which of the following mixtures can be a buffer? Group of answer choices ammonia and ammonium acetate potassium nitrate and nitric acid potassium nitrite and nitrous acid sodium chloride and hypochlorous acid

Question

Chemistry

Mayer

5 May, 19:34

Which of the following mixtures can be a buffer? Group of answer choices ammonia and ammonium acetate potassium nitrate and nitric acid potassium nitrite and nitrous acid sodium chloride and hypochlorous acid

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Answers (1)

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Alexandra Armstrong · Answer 1

Ammonia and ammonium acetate

Potassium nitrite and nitrous acid

Explanation:

A buffer system must be formed of:

A weak base and its conjugate acid, or A weak acid and its conjugate base.

Which of the following mixtures can be a buffer?

Ammonia and ammonium acetate. YES. Ammonia is a weak base and ammonium is its conjugate acid. Potassium nitrate and nitric acid. NO. Nitric acid is a strong acid. Potassium nitrite and nitrous acid. YES. Nitrous acid is a weak acid and nitrite is its conjugate base. Sodium chloride and hypochlorous acid. NO. Hypochlorous acid is a weak acid but its conjugate base is missing.