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3 years ago

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Which one of the following combinations cannot function as a buffer solution?

1 answer:

ANEK [815]3 years ago

3 0

Answer:

c.) HNO₃ & NaNO₃

Explanation:

A buffer system has 2 components:

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

<em>Which one of the following combinations cannot function as a buffer solution? </em>

<em> a.) HCN & KCN.</em> YES. HCN is a weak acid and CN⁻ (coming from KCN) its conjugate base.

<em> b.) NH₃ & (NH₄)₂SO₄.</em> YES. NH₃ is a weak base and NH₄⁺ (coming from (NH₄)₂SO₄) its conjugate acid.

<em> c.) HNO₃ & NaNO₃.</em> NO. HNO₃ is a strong acid.

<em>d.) HF & NaF.</em> YES. HF is a weak acid and F⁻ (coming from NaF) its conjugate base.

<em> e.) HNO₂ & NaNO₂.</em> YES. HNO₂ is a weak acid and NO₂⁻ (coming from NaNO₂) its conjugate base.

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Answer:

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