40 mL 0.05 M solution of sodium sesquicarbonate dihydrate (Na2CO3.NaHCO3.2H2O) is titrated against 0.05M HCl solution, x mL of acid is required to reach the phenolphthalein end point while y mL of sam

Question

40 mL 0.05 M solution of sodium sesquicarbonate dihydrate (Na2CO3.NaHCO3.2H2O) is titrated against 0.05M HCl solution, x mL of acid is required to reach the phenolphthalein end point while y mL of same acid were required when methyl orange indicator was used in a separate titration. Which of the following is/are correct statement?

Prashant Kotian · Accepted Answer

Correct answer: ABCD. Salt has equal moles of Na2CO3 and NaHCO3 when phenol phthalein indicator is used, only reaction occur till end point is 2 3 3 40 40

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