Why is CH3COOH monoprotic?

Question

Otherwise known as acetic acid. Thanks.

Answer 1

If you write it as hydrogen acetate, it is easier to see.  The formula is HC2H3O2 where C2H3O2 is acetate.  So, there is one hydrogen available to become an ion, therefore it is monoprotic.

CH3COOH is the organic chemistry way to write it to show that the COOH is present and it is a carboxylic acid.  But HC2H3O2 is the more common way to write it in chemical reactions because the acetate polyatomic ion will react with other anions.

Answer 2

A monoprotic is an acid that then its fully dissociated gives one mole of hydrogen cations to one mole of acid.

In the case of CH3COOH is does so and is therefor a monoprotic as shown below.

CH3COOH  <---> [CH3COO-] + [H+]

In the case of Sulphuric acid H2SO4 then it is added to water it produces 2 protons per mole of acid and is therefore not a monoprotic acid.

H2SO4 <---> [SO4(2-)] + [2H+]

Answer 3

it can only release the proton of the group COOH  since the group CH3 methyl is chemically nearly inert having only sigma bonds

Answer 4

cuz it is able to donate a proton during ionization. dissociates to oxonium and the acid.