A 0.5264-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04738 M AgNO3 requires 24.57 mL to reach the Mohr endpoint. A blank titration requires 0.75 mL to reach the same endpoint. Report the % (w/w) KBr (MM = 119.0) in the sample. 26.19% 51.02 % 12.76 % 25.51 %

A 0.5264-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04738 M AgNO3 requires 24.57 mL to reach the Mohr endpoint. A blank titration requires 0.75 mL to reach the same endpoint. Report the % (w/w) KBr (MM = 119.0) in the sample. 26.19% 51.02 % 12.76 % 25.51 %

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.29QAP

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for

Question

A 0.5264-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04738 M AgNO₃ requires 24.57 mL to reach the Mohr endpoint. A blank titration requires 0.75 mL to reach the same endpoint. Report the % (w/w) KBr (MM = 119.0) in the sample.

26.19%

51.02 %

12.76 %

25.51 %

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