Chemistry
geniale
2016-04-09 02:44:06
What does it mean for a weak acid to be in equilibrium? A) The acids only slightly dissociate and readily undergo reverse reaction. B)The position of equilibrium in weak acids lies more to the right than to the left. C)At equilibrium there is a small amount of HA and more A- and H+ D) At equilibrium there is the same amount of HA, A- and H+
ANSWERS
tesia0515
2016-04-09 08:33:02

A) The acids only slightly dissociate and readily undergo reverse reaction. for example: acetic acid CH₃COOH(aq) ⇄ CH₃COO⁻(aq) + H⁺(aq) nitrous acid HNO₂(aq) ⇄ H⁺(aq) + NO₂⁻(aq) carbonic acid H₂CO₃(aq) ⇄ H⁺(aq) + HCO₃⁻(aq) HCO₃⁻(aq) ⇄ H⁺(aq) + CO₃²⁻(aq)

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