Titration-finding the concentration of a solution of sulphuric acid

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…he flask and checking the colour. As soon as we got a rough titre, on the real titration we made sure that as soon as we got close to that titre we released the acid in minute amounts. This ensured that the titres were accurate. Each time we did a titration, I washed out the conical flask with a sample of the sodium carbonate to get rid of any of the sodium sulphate formed.