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    all carboxylic acids are weak acids so ethanoic acid is a weak acid ph will be close to neutral 5 or 6 i think the damp blue litmus may turn very slightly pink or no change ?? not sure. ethanol isnt an acid its an alcohol hence the -ol in the name
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    the only (a-level) chemicals with an -OH functional group which will be acidic are phenols (benzene with an -OH). alcohols may form sodium compounds...sodium in ethanol is a reducing agent, and sodium salts with phenol will form the sodium phenoxide (-O- +Na). i doubt this will happen with an aliphatic alcohol though.

    so...ethanoic acid will turn litmus red, give CO2 with sodium carbonate, and ethanol won't.
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    (Original post by sea tea)
    the only (a-level) chemicals with an -OH functional group which will be acidic are phenols (benzene with an -OH). alcohols may form sodium compounds...sodium in ethanol is a reducing agent, and sodium salts with phenol will form the sodium phenoxide (-O- +Na). i doubt this will happen with an aliphatic alcohol though.

    so...ethanoic acid will turn litmus red, give CO2 with sodium carbonate, and ethanol won't.

    Phenol is not the only acidic compound with an OH functional group. Sulphuric acid is a very strong acid and has two OH groups, and some of the strongest acids, such as magic acid also contain OH groups. Ethanol is in fact a very weak acid with a pKa of about 15.
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    (Original post by Fly.)
    Phenol is not the only acidic compound with an OH functional group. Sulphuric acid is a very strong acid and has two OH groups, and some of the strongest acids, such as magic acid also contain OH groups. Ethanol is in fact a very weak acid with a pKa of about 15.
    sulphuric acid doesn't have two hydroxy functional groups, it has an HOOSOOH structure, ie two of the same functional group as organic acids, NOT alcohols.

    my point was that you need mesomeric electron delocalisation to allow an alcohol to dissociate. this only really apparent, on a reaction level, with phenols, which will give phenoxides with bases.

    most Brønsted acids contain -OH groups. however, this is not their functional group.
    =O
    -OH is the functional group.
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    and some of the strongest acids, such as magic acid also contain OH groups
    another Harry Potter fan....
 
 
 
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