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50 mL of 0.005 M Ca²+ solution buffered at pH 10 is to be titrated with 0.01 M EDTA solution. Table 1 shows volume of EDTA added and the corresponding PCA values. Calculate pCa of a, b, c and d. The dissociation coefficient, kf for CaY²- is 5.0 x 10¹⁰. The composition of EDTA solution as a function of pH are shown in Figure 1. Table 1: Volume of EDTA vs pCa

50 mL of 0.005 M Ca²+ solution buffered at pH 10 is to be titrated with 0.01 M EDTA solution. Table 1 shows volume of EDTA added and the corresponding PCA values. Calculate pCa of a, b, c and d. The dissociation coefficient, kf for CaY²- is 5.0 x 10¹⁰. The composition of EDTA solution as a function of pH are shown in Figure 1. Table 1: Volume of EDTA vs pCa

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Chemistry
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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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50 mL of 0.005 M Ca²+ solution buffered at pH 10 is to be titrated with 0.01 M EDTA solution. Table 1 shows volume of EDTA added and the corresponding pCA values. Calculate pCa of a, b, c and d. The dissociation coefficient, kf for CaY² is 5.0 x 10¹⁰. The composition of EDTA solution as a function of pH are shown in Figure 1. Table 1: Volume of EDTA vs pCa Vol. EDTA (mL) pCa 0.0 5.0 10.0 15.0 25.0 26.0 40.0 45.0 50.0 a 2.44 b 2.81 с 8.85 d 10.15 10.24
Transcribed Image Text:50 mL of 0.005 M Ca²+ solution buffered at pH 10 is to be titrated with 0.01 M EDTA solution. Table 1 shows volume of EDTA added and the corresponding pCA values. Calculate pCa of a, b, c and d. The dissociation coefficient, kf for CaY² is 5.0 x 10¹⁰. The composition of EDTA solution as a function of pH are shown in Figure 1. Table 1: Volume of EDTA vs pCa Vol. EDTA (mL) pCa 0.0 5.0 10.0 15.0 25.0 26.0 40.0 45.0 50.0 a 2.44 b 2.81 с 8.85 d 10.15 10.24
1.0 H₂Y²- HY³- 0000 Y4- H₂Y- 70 0.8 0.6 0.4 0.2 0 8 2 4 6 8 10 12 14 pH Figure 1. Composition of EDTA solutions as a function of pH.
Transcribed Image Text:1.0 H₂Y²- HY³- 0000 Y4- H₂Y- 70 0.8 0.6 0.4 0.2 0 8 2 4 6 8 10 12 14 pH Figure 1. Composition of EDTA solutions as a function of pH.
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