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2. How would our experimental results change if a less polar mobile phase was used such as butanol instead of isopropyl aleohol?

2. How would our experimental results change if a less polar mobile phase was used such as butanol instead of isopropyl aleohol?

Chemistry
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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1. If we wanted to increase the separation efficiency of the molecules in this experiment, should we increase or decerease the length of our column? Explain your answer. 2. How would our experimental results change if a less polar mobile phase was used such as butanol instead of isopropyl alcohol? 3. Suppose three molecules are in a sample: A, B, and C. If the sample was separated using this experimental procedure, what order would the compounds elute (from first to last)? Molecule A is a nonpolar compound. Molecule C is a polar compound that also has hydrogen-bonding intermolecular forces. Molecule B is polar compound without any hydrogen bonding sites. 4. The following molecules are separated using this experimental technique. List the molecules the order in which they would elute (first being the first to come off the column, third last). MOLECULE LEWIS STRUCTURE ORDER OF ELUTION H. H .C Acetone H. H H. H C Pentane H H. H H. H H. H. Methylamine 186 |EXPERIMENT 13 86
Transcribed Image Text:1. If we wanted to increase the separation efficiency of the molecules in this experiment, should we increase or decerease the length of our column? Explain your answer. 2. How would our experimental results change if a less polar mobile phase was used such as butanol instead of isopropyl alcohol? 3. Suppose three molecules are in a sample: A, B, and C. If the sample was separated using this experimental procedure, what order would the compounds elute (from first to last)? Molecule A is a nonpolar compound. Molecule C is a polar compound that also has hydrogen-bonding intermolecular forces. Molecule B is polar compound without any hydrogen bonding sites. 4. The following molecules are separated using this experimental technique. List the molecules the order in which they would elute (first being the first to come off the column, third last). MOLECULE LEWIS STRUCTURE ORDER OF ELUTION H. H .C Acetone H. H H. H C Pentane H H. H H. H H. H. Methylamine 186 |EXPERIMENT 13 86
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