jeromakoi791 jeromakoi791

30-04-2024
Chemistry

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4 A learner is asked to prepare a standard solution of the weak acid, oxalic acid (COOH):2H0 for use in volume of the solution must be 500 cms and the concentration 0.2 mol dm-x (a) Calculate the mass of oxalic acid which the leamer has to dissolve to make up the required standard solution. The leaner ttrates this 02 mol dm-s oxalic acid solution against a solution of sodium hydroxide. He finds that 40 cms of the cxalic acid solution exactt neutralises 35 cms of the sodium hydroxide solution (b) Calculate the concentration of the sodium hydroxide solution

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