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Based on the chemical reactions provided, which of the following is equivalent to KMg-EDTA? [Mg2*] [EDTA?] [Mg-EDTA]/{[Mg²*] [EDTA2 ]} O Option 1 Option 2 {[Mg²*] [EDTA2-]}/[Mg-EDTA] {[Mg-EDTA][Ind2 ]}/{[Mg-Ind] [EDTA²-]} Option 3 O Option 4

Based on the chemical reactions provided, which of the following is equivalent to KMg-EDTA? [Mg2*] [EDTA?] [Mg-EDTA]/{[Mg²*] [EDTA2 ]} O Option 1 Option 2 {[Mg²*] [EDTA2-]}/[Mg-EDTA] {[Mg-EDTA][Ind2 ]}/{[Mg-Ind] [EDTA²-]} Option 3 O Option 4

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Based on the chemical reactions provided, which of the following is equivalent to KMg-EDTA? [Mg2*] [EDTA?] [Mg-EDTA]/{[Mg²*] [EDTA2 ]} Option 1 Option 2 {[Mg2*] [EDTA?-]}/[Mg-EDTA] {[Mg-EDTA][Ind? ]}/{[Mg-Ind] [EDTA² 1} O Option 3 O Option 4
Transcribed Image Text:Based on the chemical reactions provided, which of the following is equivalent to KMg-EDTA? [Mg2*] [EDTA?] [Mg-EDTA]/{[Mg²*] [EDTA2 ]} Option 1 Option 2 {[Mg2*] [EDTA?-]}/[Mg-EDTA] {[Mg-EDTA][Ind? ]}/{[Mg-Ind] [EDTA² 1} O Option 3 O Option 4
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: Ca2*(aq) + EDTA²-(aq) 2 Ca-EDTA (aq) KC-EDTA Mg-Ind (aq) = Mg2*(aq) + Ind2-(aq) 1/KMg-Ind Mg2*(aq) + EDTA²-(aq) Mg-EDTA (aq) KMg-EDTA where Kca-EDTA, Kmg-Ind and KMg-EDTA are the equilibrium constants for the complex formation. The over-all concentration of the Mg-EDTA complex near the endpoint is equal to KMg-EDTA /KMg-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: Ca2*(aq) + EDTA²-(aq) 2 Ca-EDTA (aq) KC-EDTA Mg-Ind (aq) = Mg2*(aq) + Ind2-(aq) 1/KMg-Ind Mg2*(aq) + EDTA²-(aq) Mg-EDTA (aq) KMg-EDTA where Kca-EDTA, Kmg-Ind and KMg-EDTA are the equilibrium constants for the complex formation. The over-all concentration of the Mg-EDTA complex near the endpoint is equal to KMg-EDTA /KMg-Ind-
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