Distinguishing between carboxylic acids
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EasyTiger
Could you use methyl orange, as in it would go red with methanoic acid, and orange with ethanoic acid?
why would it go red with methanoic and orange with ethanoic?
EasyTiger
Could you use methyl orange, as in it would go red with methanoic acid, and orange with ethanoic acid?
this really depends on the concentration of the acids...
EasyTiger
Different pH's
Concentration dependent, probably not the easiest or most reliable way.
react with Tollen's reagent [Ag(NH3)2] . Methanoic acid will reduce it to Ag (s) which forms as a silver mirror. Ethanoic acid will not reduce Tollen's reagent. This occurs as Methanoic acid acts as both and aldehyde and an acid, so t is able to act as a reducing agent. Ethanoic cannot act as a reducing agent as it does not posses an aldehyde group.
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