5. A 1.000 g sample containing chlorides, iodides and inert materials was treated with dilute nitric acid followed by AGNO3. A precipitate of AgCI (143.45) and AgI (234.77) was produced and weighs 0.9238 g. On heating in a current of Cl2, the AgI is converted to AgCI, and the mixture of precipitate loses 0.4250 g in weight. Find the percentage of a) Nal (149.89) and b) NaCl (58.44) in the sample.

5. A 1.000 g sample containing chlorides, iodides and inert materials was treated with dilute nitric acid followed by AGNO3. A precipitate of AgCI (143.45) and AgI (234.77) was produced and weighs 0.9238 g. On heating in a current of Cl2, the AgI is converted to AgCI, and the mixture of precipitate loses 0.4250 g in weight. Find the percentage of a) Nal (149.89) and b) NaCl (58.44) in the sample.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter24: Coulometry

Section: Chapter Questions

Problem 24.10QAP: A 0.0712-g sample of a purified organic acid was dissolved in an alcohol-water mixture and titrated...

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