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14 April, 01:32

Write the chemical reaction for nitrous acid in water, whose equilibrium constant is K a. Include the physical states for each species. K a reaction: Write the chemical reaction for the nitrite ion in water, whose equilibrium constant is K b. Include the physical states for each species.

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  1. 14 April, 02:33
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    HNO₂ (aq) + H₂O (l) ⇄ NO₂⁻ (aq) + H₃O⁺

    NO₂⁻ (aq) + H₂O (l) ⇄ HNO₂ (aq) + OH⁻ (aq)

    Explanation:

    According to Brönsted-Lowry acid-base theory, nitrous acid is an acid because it transfers an H⁺ to another compound. The corresponding reaction is:

    HNO₂ (aq) + H₂O (l) ⇄ NO₂⁻ (aq) + H₃O⁺

    According to Brönsted-Lowry acid-base theory, nitrite ion is a base because it accepts an H⁺ from another compound. The corresponding reaction is:

    NO₂⁻ (aq) + H₂O (l) ⇄ HNO₂ (aq) + OH⁻ (aq)
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