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Chemistry / Quantitative Chemical Analysis 8 / Chapter 11 / Problem 11-20

Quantitative Chemical Analysis | 8th Edition | ISBN: 9781429218153 | Authors: Daniel C. Harris

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Auxiliary complexing agent. Use the equation derived in 11-19. (a) Prepare a spreadsheet

Chapter 11, Problem 11-20

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QUESTION:

Auxiliary complexing agent. Use the equation derived in 11-19. (a) Prepare a spreadsheet to reproduce the 20-, 50-, and 60-mL points in the EDTA titration of Zn2 in the presence of NH3 in the example on pages 248249. (b) Use your spreadsheet to plot the curve for the titration of 50.00 mL of 5.00 mM Ni2 by 10.00 mM EDTA at pH 11.00 in the presence of a fixed oxalate concentration of 0.100 M. 1

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QUESTION:

Auxiliary complexing agent. Use the equation derived in 11-19. (a) Prepare a spreadsheet to reproduce the 20-, 50-, and 60-mL points in the EDTA titration of Zn2 in the presence of NH3 in the example on pages 248249. (b) Use your spreadsheet to plot the curve for the titration of 50.00 mL of 5.00 mM Ni2 by 10.00 mM EDTA at pH 11.00 in the presence of a fixed oxalate concentration of 0.100 M. 1

ANSWER:

Step 1 of 2

(a)

Given the titration of 50.0 mL of with EDTA at pH 10.00 in the presence of the complexing agent 0.10 M . The spreadsheet representing the points 20-, 50-, and 60-mL in the titration is given below:

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