Question

a sample of sodium hydrogen carbonate was tested for purity using the following method 0.400 gram of the solid was dissolved in 100 cm^3 of water and treated with 0.20 mol dm^-3 hydrochloric acid using methyl orange indicator 2.23.75 cm^3 of acid was required for complete neutralization (a) write the equation for the titration reaction.
(b) calculate the moles of acid used in the titration and the moles of sodium hydrogen carbonate titrated (c) calculate the mass of sodium hydrogen carbonate and hence the purity of the sample ​

Answer 1

Answer:

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