A 50.00 mL aliquot of city drinking water was treated with a small amount of ammonia –- ammoniumchloride buffer to bring the pH to 10. After the addition of EBT indicator the solution required 10.00 mLof 8.000 x 10-3 M EDTA for titration. Calculate the hardness in terms of parts per million calciumcarbonate (100.0869 g/mol).O 80160 ppm320

Answered: of 8.000 x 10¬3 M EDTA for titration.…

of 8.000 x 10¬3 M EDTA for titration. Calculate the hardness in terms of parts per million calcium carbonate (100.0869 g/mol).

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.35QAP

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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 50.00 mL aliquot of city drinking water was treated with a small amount of ammonia –- ammonium
chloride buffer to bring the pH to 10. After the addition of EBT indicator the solution required 10.00 mL
of 8.000 x 10-3 M EDTA for titration. Calculate the hardness in terms of parts per million calcium
carbonate (100.0869 g/mol).
O 80
160 ppm
320

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