Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Which of the following is equivalent to the overall concentration of Mg-EDTA near the endpoint? a. [Mg2+] [EDTA2-] b. [Mg-EDTA] / {[Mg2+] [EDTA2-]} c. {[Mg2+] [EDTA2-]} / [Mg-EDTA] d. {[Mg-EDTA][Ind2-]} / {[Mg-Ind] [EDTA2-]}

Which of the following is equivalent to the overall concentration of Mg-EDTA near the endpoint? a. [Mg2+] [EDTA2-] b. [Mg-EDTA] / {[Mg2+] [EDTA2-]} c. {[Mg2+] [EDTA2-]} / [Mg-EDTA] d. {[Mg-EDTA][Ind2-]} / {[Mg-Ind] [EDTA2-]}

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question

Which of the following is equivalent to the overall concentration of Mg-EDTA near the endpoint?

a. [Mg2+] [EDTA2-]

b. [Mg-EDTA] / {[Mg2+] [EDTA2-]}

c. {[Mg2+] [EDTA2-]} / [Mg-EDTA]

d. {[Mg-EDTA][Ind2-]} / {[Mg-Ind] [EDTA2-]}

In the analysis for total hardness, formation of Ca-EDTA complex in the presence of an magnesium-calmagite indicator (or Mg-Ind) complex involves the ff. reactions: Ca*(aq) + EDTA?-(aq) = Ca-EDTA (aq) KcaEDTA Mg-Ind (aq) = Mg²"(aq) + Ind2-(aq) 1/KMgind Mg2 (aq) + EDTA?-(aq) = Mg-EDTA (aq) KMPEDTA where KcaEDTA. KMoind and KMEDTA are the equilibrium constants for the complex formation. The over-all concentration of the Mg-EDTA complex near the endpoint is equal to KMp-EDTA /Kng-Ind-
Transcribed Image Text:In the analysis for total hardness, formation of Ca-EDTA complex in the presence of an magnesium-calmagite indicator (or Mg-Ind) complex involves the ff. reactions: Ca*(aq) + EDTA?-(aq) = Ca-EDTA (aq) KcaEDTA Mg-Ind (aq) = Mg²"(aq) + Ind2-(aq) 1/KMgind Mg2 (aq) + EDTA?-(aq) = Mg-EDTA (aq) KMPEDTA where KcaEDTA. KMoind and KMEDTA are the equilibrium constants for the complex formation. The over-all concentration of the Mg-EDTA complex near the endpoint is equal to KMp-EDTA /Kng-Ind-
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Analytical Separations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS