Ion Ca²+ Mg2+ Na* K+ CI SO4²- HCO3 CO3²- PH Conc mg/L 140 65 60 10 200 140 39.1 ? 11.0 Knowing that the dissociation constant, K₂, for the dissociation reaction of HCO3 → CO3²- + H+ is 10-10.33 (or 4.68 x 10-¹¹), determine the alkalinity expressed in mg/L as CaCO3.

Ion Ca²+ Mg2+ Na* K+ CI SO4²- HCO3 CO3²- PH Conc mg/L 140 65 60 10 200 140 39.1 ? 11.0 Knowing that the dissociation constant, K₂, for the dissociation reaction of HCO3 → CO3²- + H+ is 10-10.33 (or 4.68 x 10-¹¹), determine the alkalinity expressed in mg/L as CaCO3.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.24QAP

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

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A chemical analysis of industrial wastewater yields the following data:
Ion
Ca²+
Mg2+
Na+
K+
CI-
SO4²-
HCO3
CO3²-
pH
Conc mg/L
140
65
60
10
200
140
39.1
?
11.0
Knowing that the dissociation constant, K₂, for the dissociation reaction of
HCO3 → CO3²- + H+
is 10-10.33 (or 4.68 x 10¹¹), determine the alkalinity expressed in mg/L as CaCO3.

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