A 100.0 mL sample of drinking water was buffered at pH 10.0 and, after addition of Calmagite indicator, required 38.11 mL of 4.652 x 10-2 M EDTA for titration. Calculate the total hardness of the water as (a) ppm CaCO3 and (b) ppm CaO

A 100.0 mL sample of drinking water was buffered at pH 10.0 and, after addition of Calmagite indicator, required 38.11 mL of 4.652 x 10-2 M EDTA for titration. Calculate the total hardness of the water as (a) ppm CaCO3 and (b) ppm CaO

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter14: Equilibria In Acid-base Solutions

Section: Chapter Questions

Problem 74QAP: Fifty cm3 of 1.000 M nitrous acid is titrated with 0.850 M NaOH. What is the pH of the solution (a)...

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A 100.0 mL sample of drinking water was buffered at pH 10.0 and, after addition of Calmagite indicator,
required 38.11 mL of 4.652 x 10-2 M EDTA for titration. Calculate the total hardness of the water as (a)
ppm CaCO3 and (b) ppm CaO|

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