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How could I do determination of H2SO4, HCl,CH3COOH, H3PO4 in a mixture solution by classical method?

How could I do determination of H2SO4, HCl,CH3COOH, H3PO4 in a mixture solution by classical method?
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Answer #1
  • Firstly,silver nitrate is added to the mixture.
  • HCl and H3PO4 reacts with silver to form precipitate.
  • AgCl is used to determine HCl by gravimetric titration.
  • Ag2HPO4 is neutralised with NaOH. And hence, phosphoric acid can be determined.
  • Now, remaining are acetic acid and sulphuric acid.
  • Now, we add few drops of barium chloride(BaCl2) barium sulphate is formed which precipitate. And mixture is left with acetic acid which can determined by titration with weak base.
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