You were assigned to determine the concentration of an unknown starch solution. [This unknown is different from Dr. Ford's unknown.] So you prepared a cuvette by mixing 5 drops of your unknown starch solution + 5 drops of water +3 ml buffer +1 drop of lodine. You used the same spectrophotometer Dr. Ford used to measure the absorbance of your unknown starch mixture and the absorbance was 0.127. What is the concentration (in micro-g starch/micro-L) of your unknown starch solution? Assume that 1 drop of the unknown starch solution = 40 micro-L. Give a numerical answer with 3 sig figs without any unit. Answer:

You were assigned to determine the concentration of an unknown starch solution. [This unknown is different from Dr. Ford's unknown.] So you prepared a cuvette by mixing 5 drops of your unknown starch solution + 5 drops of water +3 ml buffer +1 drop of lodine. You used the same spectrophotometer Dr. Ford used to measure the absorbance of your unknown starch mixture and the absorbance was 0.127. What is the concentration (in micro-g starch/micro-L) of your unknown starch solution? Assume that 1 drop of the unknown starch solution = 40 micro-L. Give a numerical answer with 3 sig figs without any unit. Answer:

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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