Written by: Nicholas Connor The purpose of this experiment was to understand alkene-halide reactions by purifying commercial cholesterol. Analysis The purpose of this experiment was to remove the impurities present in commercial cholesterol; to yield pure 5-Cholesten-3B-ol. Bromination was the method chosen to remove traces of 3B-cholestanol, 7-cholesten-3b-ol, and 5,7-cholestadien-3B-ol that were assumed to be present in the sample used. The net reaction of bromination follows: To begin removing the impurities, the cholesterol sample (0.97 g) was dissolved in tert-butyl-methyl-ether […]
E.Coli by Definition: a bacterium commonly found in the intestines of humans and other animals, where it usually causes no harm. Some strains can cause severe food poisoning, especially in old people and children. What organism does this lab attempt to transform? This lab attempts to transform bacterial E. Coli. In the context of this lab, what do we mean when we say a cell is competent? Cellular competence is the ability of a cell to take up genetic material […]
Introduction In this experiment, a motion detector was used to collect distance, velocity, and acceleration data for different types of balls being thrown straight up in the air. Like a juggler who tosses a ball straight upward, each ball slows down on it’s path to maximum height, then begins to speed up on it’s way down. The concept is that there is a definite mathematical pattern to the changes in velocity, which will be reinforced by experimentation. Analysis (2) How […]