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16 June, 01:38

A buffer contains significant amounts of ammonia and ammonium chloride. part a write an equation showing how this buffer neutralizes added acid (hi).

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  1. 16 June, 04:18
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    Hello!

    When HI is added, the buffer reacts in the following way:

    1) Neutralizing of the Acid:

    HI + NH₄OH → NH₄I + H₂O

    2) Dissociation of the salt of a weak acid:

    NH₄I → NH₄⁺ (aq) + I⁻ (aq)

    3) Dissociation of a weak acid to form H₃O⁺ (very little):

    NH₄⁺ + H₂O ⇄ NH₃ + H₃O⁺

    This series of reactions show how the adding of a strong Acid can be neutralized by the buffer, releasing instead very little amounts of Hydronium ions.

    Have a nice day!
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