COMPLEXOMETRIC TITRATIONA deep well sample of 100 mL was titrated with 0.010 MEDTA at pH=10 (with Mg-EDTA-PH10 reagent) andconsumed 31.95 mL using EBT indicator. Titration ofanother 100 mL of the same deep well sample with thesame titrant but the pH was adjusted to 12.10 andmurrexide as indicator consumed 24.25 ml to reach endpoint.Calculate:А.Total Hardness of water as CaCO3В.ppm of Ca and Mg76

Volume of sample = 100 mLConcentration of EDTA = 0.010 MVolume of EDTA used when EBT is used as…

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Calculate: A. Total Hardness of water as CaCO3 B. ppm of Ca and Mg

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter14: Principles Of Neutralization Titrations

Section: Chapter Questions

Problem 14.9QAP

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

COMPLEXOMETRIC TITRATION
A deep well sample of 100 mL was titrated with 0.010 M
EDTA at pH=10 (with Mg-EDTA-PH10 reagent) and
consumed 31.95 mL using EBT indicator. Titration of
another 100 mL of the same deep well sample with the
same titrant but the pH was adjusted to 12.10 and
murrexide as indicator consumed 24.25 ml to reach end
point.
Calculate:
А.
Total Hardness of water as CaCO3
В.
ppm of Ca and Mg
76

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