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Study of Polarographic Behaviors of Cadmium(ii) in Potassium Chloride

Meseret Amde Aga

ISBN 10: 3846524387 / ISBN 13: 9783846524381
Published by LAP Lambert Academic Publishing
New Condition: New Soft cover
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68 pages. Dimensions: 8.7in. x 5.9in. x 0.2in.This paper aims at investigating the polarographic behavior of cadmium (II) and constructing a calibration chart using a manual polarography. Solutions containing different concentration of cadmium (II) were prepared and analyzed by polarographic method. From the collected data, the polarograms were drawn for each analyzed test solutions. From the polarograms, diffusion current (Id) was determined for each solutions and plotted against their concentrations. The plot resulted in a straight line and it shows the linearity of diffusion current with the concentration of the depolarizer ion. The value of half wave potential (E12) was also determined for all solutions and it was found to be uniform. The log-plot was drawn by taking logI(Id-I) as ordinate and the potential applied as abscissa. All the log plots resulted in a straight line in strictly increasing interval and their slope values were determined and found to be approximately in the environs of theoretical value (29. 6 mV). This shows the reversible reduction of the depolarizer. This item ships from multiple locations. Your book may arrive from Roseburg,OR, La Vergne,TN. Bookseller Inventory # 9783846524381

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Bibliographic Details

Title: Study of Polarographic Behaviors of Cadmium(...

Publisher: LAP Lambert Academic Publishing

Binding: Paperback

Book Condition:New

Book Type: Paperback

About this title

Synopsis:

This paper aims at investigating the polarographic behavior of cadmium (II) and constructing a calibration chart using a manual polarography. Solutions containing different concentration of cadmium (II) were prepared and analyzed by polarographic method. From the collected data, the polarograms were drawn for each analyzed test solutions. From the polarograms, diffusion current (Id) was determined for each solutions and plotted against their concentrations. The plot resulted in a straight line and it shows the linearity of diffusion current with the concentration of the depolarizer ion. The value of half wave potential (E1/2) was also determined for all solutions and it was found to be uniform. The log-plot was drawn by taking log[I/(Id-I)] as ordinate and the potential applied as abscissa. All the log plots resulted in a straight line in strictly increasing interval and their slope values were determined and found to be approximately in the environs of theoretical value (29.6 mV). This shows the reversible reduction of the depolarizer.

About the Author:

Meseret Amde obtained his Bachelor degree in Chemistry from Mekelle University in 2006. Since then, he has worked in Haramaya University as Graduate Assistant-I, Graduate Assistant-II and Assistant Lecturer positions. Currently, he is second year post graduate (MSc in Analytical Chemistry) student at Haramaya University.

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