Question

Estimation of sodium benzoate calculation

Answer 1

Explanation:

Assay Procedure : Weigh accurately about 0.25 g of Sodium Benzoate, dissolve in 20 ml of anhydrous glacial acetic acid, warming to 50º if necessary, cool. Titrate with 0.1 M perchloric acid, using 0.05 ml of 1-naphtholbenzein solution as indicator. Carry out a blank titration.

Answer 2

Step by Step Explanation of Answer ✿

Assay Procedure : Weigh accurately about 0.25 g of Sodium Benzoate, dissolve in 20 ml of anhydrous glacial acetic acid, warming to 50º if necessary, cool. Titrate with 0.1 M perchloric acid, using 0.05 ml of 1-naphtholbenzein solution as indicator .

Contents of Sodium Benzoate:

Contents of Sodium Benzoate: Titrate with the help of 50 ml burette with 0.1 M Perchloric acid using 0.05 ml of Naphtholbenzein solution as indicator, until the color changes to green. Each ml of 0.1 M Perchloric acid is equivalent to 14.41 mg of Sodium benzoate .

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