7 Calculate the theoretical specific conductance (k) of the following mixtures: 7.1 2 mL of 0.02 M HCI is added to 100 mL of 5 X 104 M Ba(OH)2. 7.2 (3) 5 mL of 0.02 M NaCl is added to 100 mL of 1 X 10-3 M AgNO3. (3) 7. Ion Selective Electrodes (ISE) used in Analytical Chemistry are generally classified into four classes: the glass electrodes, solid state (crystalline membrane) electrodes, liquid ion exchange (polymer membrane electrodes) and compound electrodes. The pH electrode is the most popular electrode used for measurement of pH. Answer the following questions about ISES. 4.1 Discuss in detail the mechanism of the glass membrane electrode measurements. (5) response for pH 4.2 What is the alkaline error and the acid error of a glass membrane pH electrode? (4) 8. List three (3) variables can be optimized to improve on the resolution in chromatography? (3) 9. List three (3) variables that leads to increased zone broadening in chromatography. (3) 10. There are three terms in the van Deemter equation: the A term, the B term, and the C term, each describing a different type of contribution to the band broadening. Explain the type of band broadening described by each term. (9)

7 Calculate the theoretical specific conductance (k) of the following mixtures: 7.1 2 mL of 0.02 M HCI is added to 100 mL of 5 X 104 M Ba(OH)2. 7.2 (3) 5 mL of 0.02 M NaCl is added to 100 mL of 1 X 10-3 M AgNO3. (3) 7. Ion Selective Electrodes (ISE) used in Analytical Chemistry are generally classified into four classes: the glass electrodes, solid state (crystalline membrane) electrodes, liquid ion exchange (polymer membrane electrodes) and compound electrodes. The pH electrode is the most popular electrode used for measurement of pH. Answer the following questions about ISES. 4.1 Discuss in detail the mechanism of the glass membrane electrode measurements. (5) response for pH 4.2 What is the alkaline error and the acid error of a glass membrane pH electrode? (4) 8. List three (3) variables can be optimized to improve on the resolution in chromatography? (3) 9. List three (3) variables that leads to increased zone broadening in chromatography. (3) 10. There are three terms in the van Deemter equation: the A term, the B term, and the C term, each describing a different type of contribution to the band broadening. Explain the type of band broadening described by each term. (9)

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...

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