Indicate the effect (increases, decreases, or stays the same) that each of the following changes will have on the retention time of a compound: a) Decreases the velocity of the carrier gas flow: b) Increase the temperature of the column: c) Increase the length of the column:

Indicate the effect (increases, decreases, or stays the same) that each of the following changes will have on the retention time of a compound: a) Decreases the velocity of the carrier gas flow: b) Increase the temperature of the column: c) Increase the length of the column:

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter14: Mixtures And Solutions

Section14.1: Types Of Mixtures

Problem 7SSC

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Concept explainers

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.

Question

Indicate the effect (increases, decreases, or stays the same) that each of the following changes will have on the retention time of a compound:

a) Decreases the velocity of the carrier gas flow:

b) Increase the temperature of the column:

c) Increase the length of the column:

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