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Back Titration to find the Concentration of Vinegar (Ethanoic Acid)
- Words:
- 1861
- Submitted:
- Fri Mar 31 2006

... Back Titration to find the Concentration of Vinegar (Ethanoic Acid) Aim The aim of this investigation is to find the concentration of vinegar (ethanoic acid, CH3COOH(aq)) in the sample given. This is to be carried out with the following being provided: 0.1 mol dm-3 sulphuric acid (H2SO4(aq)), sodium hydroxide (NaOH(aq)) of unknown concentration, as well as microchemistry laboratory titration equipment. This will be a back-titration as we cannot find the concentration of ethanoic acid directly. The sulphuric acid will be titrated with sodium hydroxide, which will help to calculate the concentration of the base. This base will then be titrated with Ethanoic acid, from which the concentration can be calculated. Plan * Safety goggles and lab coat need to be put on. * The two acids and base will be poured into separately labelled beakers. * The titration equipment will be set up as follows: the well plate is placed on the white card, and the pipette














