Aqueous soln of acetic acid contains ??
in the ans its given CH3COO- ,H3O+ ,CH3COOH
but shouldnt H2O remain in soln instead becoz H2O is weaker acid than carboxylic acid..so ionization H2O<ionization carboxylic acid
=> relatively carboxylate an H+ ions more in soln...
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2 Answers
as the reaction is a reversible one it straightly follows lechatelier principle,here H+ is produced by dissociation of acetic acid which is consumed by H2O to form H3O+ ions so at equilibrium the forward reaction is favoured ,the forward reaction till all the H2O is used up and in an aqueous soln acetic acid is in excess so the equilibrium mixture will have H3O+,acetate ion and acetic acid.
h20 in solution exists as h+ and oh- ions only
as the h+ in solution exists as h30+
and the oh- reacts with ch3coo-(ch3coo- is a strong conjugate base) to form ch3cooh and h+
so all the oh- ions are consumed
and only
ch3cooh
h30+
and ch3coo- ions are present in solution