In this experiment there is two parts to fulfill. One included the synthesis of tert-butyl chloride and the other consists of qualitative chemical tests for reactivity. During the synthesis portion one will perform a series of procedures to add and draw off different chemicals in a seperatory funnel to attain tert-butyl chloride. “During the qualitative chemical tests one will use silver nitrate and sodium iodide to perform SN1 and SN2 reactions with tert-butyl chloride and 1-chlorobutane” (3). There are two types of reaction mechanisms and that is substitution and elimination. In this experiment it is only focused on substitution reactions. “In a substitution reaction, an electron-rich species donates a pair of electrons to an electron poor species which forms a new product and a new base” (2). There are multiple types off substitution reactions and they are …show more content…
(0.053 mol Tert-Butyl Alcohol) x (1 mol Tert-Butyl Chloride)/ (1 mol Tert-Butyl Alcohol)= 0.053 mol Tert-Butyl Chloride. (0.053 mol Tert-Butyl Chloride) x (92.57g Tert-Butyl Chloride)/ (1 mol Tert-Butyl Chloride) = 4.9 g Tert-Butyl Chloride Discussion The reaction observed in test tube 1 went from a clear solution to light yellow after putting it in the hot water bath for about one minute. The reaction in test tube 2 showed that once all of the substances were placed in the tube it immediately turned a cloudy, milky color. In test tube 3 the reaction observed showed that it immediately went from cloudy to clear after a few seconds. In test tube 4 after about a minute the mixtures became soft white color. My expectations were that all of them would turn cloudy and stay cloudy and that the test tube solutions would not need to be heated. This was not the case for some of the test
The purpose of this lab was to perform an electro-philic aromatic substitution and determine the identity of the major product. TLC was used to detect unre-acted starting material or isomeric products present in the reaction mixture.
In experiment I “Watching the Reaction,” none of the runs reacted. 1A and 2A were still dark purple and light purple (respectively) at the beginning of the experiment and 10 minutes after. 3A had a translucent top and a dark purple bottom. There was a clear distinction of color in run 3A, much like combining water with oil. Since the tubes were rinsed multiple times with distilled water, dirty
The product was recrystallized to purify it and the unknown filtrate and nucleophile was determined by taking the melting points and performing TLC. Nucleophilic substitution reactions have a nucleophile (electron pair donor) and an sp3 electrophile (electron pair acceptor) with an attached leaving group. This experiment was a Williamson ether synthesis usually SN2, with an alkoxide and an alkyl halide. Conditions are favored with a strong nucleophile, good leaving group, and a polar aprotic solvent.
The lab Water to Grape Juice to Milk went through many chemical changes. For each change a chemical reaction took place. There were five changes that happened all together. Every change was produced by mixing different substances together to produce the outcome. The first change was water to grape juice. This was the reaction between distilled water, phenolphthalein solution, and sodium hydroxide. The reaction was the water with the solution turning purple. Sodium hydroxide and phenolphthalein must have been responsible for the change because when the two things were mixed it caused the color to change. Next was the grape juice to lemonade. This was taking the grape juice and mixing it with sulfuric acid. Once again the reaction was the color
In the second experiment with the green color, I can safely conclude that the color green in this case is very soluble and we would need longer filter paper, perhaps more time to safely separate the different colors that make up the color green.
Book Title: Fahrenheit 451 Author: Ray Bradbury Original date of publication: 1953 Part A.) The Author. Visit the reference section of a library. Drawing from at least two sources, share the life story of the author. Discuss how the author’s life and circumstances may have influenced the novel.
Since this test has been devised, the number one question everybody is asking is, “ isn’t it unfair to base a student’s entire future on one test, when he or she simply could have had a bad day when taking the test”? The president Kirk T. Schroder of the Virginia Board of Education, answer this question by saying, “First of all, these tests are untimed, so no student is under arbitrary time pressure in taking the test.
Some students simply do not test well, others try their hardest and still cannot reach the impracticable standards set for them. The individuals who create these tests do not understand the pressures of being a student, or the struggle to answer thirty-five questions in a compressed time period. One test cannot accurately measure the intelligence of a student.
reason of the test. So let us get back to our question posed at the
Tests cannot always measure everything that needs to be measured on a course or what a st...
There are many people who simply do not perform well on tests.
Now everything has been done to these tests in attempt to make them more tolerable; they’ve been taken, skipped, enforced, cheated on, changed, taught, even puked on enough that there is now a procedure in almost every test administrator’s instruction manual on what to do if a student were to puke on his or her
google what ever problem their having with the test. It sounds like what one of the
We were surprised when the exact same reaction happened as what happened with Experiment 1, minus the color
Redox reactions involve a transfer or altered sharing of electrons from one reacting species to another. If the oxidation number of an element in a reacting species changes, then that element is said to have undergone either oxidation or a reduction.