3. A student separated an unknown mixture of ions using the procedure of Part A. When the spots were made visible, a faint spot corresponding to Cu2+was seen. However, the student later learned that the unknown did not contain Cu2+, Which of the following could cause this result?a. The same spotting capillary was used to spot the Cu2+sample and the unknown sample.b. The Cu2+sample was contaminated with Co2+and Fe3+c. The chromatography paper was not trimmed to the correct dimensions.d. The position of the mobil-phase front was incorrectly marked.Explain your answer.
3. A student separated an unknown mixture of ions using the procedure of Part A. When the spots were made visible, a faint spot corresponding to Cu2+was seen. However, the student later learned that the unknown did not contain Cu2+, Which of the following could cause this result?a. The same spotting capillary was used to spot the Cu2+sample and the unknown sample.b. The Cu2+sample was contaminated with Co2+and Fe3+c. The chromatography paper was not trimmed to the correct dimensions.d. The position of the mobil-phase front was incorrectly marked.Explain your 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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3. A student separated an unknown mixture of ions using the procedure of Part A. When the spots were made visible, a faint spot corresponding to Cu2+was seen. However, the student later learned that the unknown did not contain Cu2+, Which of the following could cause this result?
a. The same spotting capillary was used to spot the Cu2+sample and the unknown sample.
b. The Cu2+sample was contaminated with Co2+and Fe3+
c. The chromatography paper was not trimmed to the correct dimensions.
d. The position of the mobil-phase front was incorrectly marked.
Explain your answer.
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