CHM2123 Lab 5

This type of reaction is an oxidation-reduction (or redox) reaction. This reaction is also [anabolic/catabolic] and [endergonic/exergonic].

Abstract: Using hypochlorous acid to convert secondary alcohol called cyclododecanol to the corresponding ketone which is cyclododecanone by oxidation.

In an oxidation reaction, the number of C-H bonds decreases or the number of C-O bonds increases, while in a reduction reaction, the number of C-H bonds increases or the number of C-O bonds decreases. In the oxidation step of this reaction, 4-tert-butylcyclohexanone is formed from when a C-H bond is lost while a C-O bond is gained to create a carbonyl. In the reduction step, 4-tert-butylcyclohexanol is formed when the carbonyl is converted into an alcohol when a nucleophilic hydride attacks the carbonyl. Whether the OH is in the

Oxidation-reduction reactions can be used to stereochemically control and produce many different organic molecules. The oxidation step in this process increases the number of carbon oxygen bonds by losing a hydrogen and breaking

The purpose of this lab report is to synthesize luminol and then test its chemiluminescent properties. 5-nitro-2,3-dihydrophtalazine-1,4-dione was reduced using sodium hydrosulfite in a solution of 3 M sodium hydroxide in water to form luminol. The product was then used to chemically generate light by reacting luminol with 3 M sodium hydroxide, hydrogen peroxide, and potassium ferricyanide. The reaction created a bright, blue light emission. From glow sticks to revealing remnants of blood samples in crime scene investigations, luminol, C8H7N3O2, has a wide variety of real world applications.

BI532: Skills for Bioscientists 2 Mini Project 2 report Effect on the velocity Alcohol Dehydrogenase on different alcohols under different conditions Abstract The effect on the velocity of Alcohol dehydrogenase producing an acetaldehyde was measured under different conditions to analyse the properties of the enzyme as well as the concentration the enzymes have the best rates. The velocity of alcohol dehydrogenase was measured against different substrates such as ethanol, propanol and propan-2-ol and using spectrophotometry at a wavelength of 340nm. While the enzyme velocity of ethanol production was high, propan-2-ol did not cause any changes the rate of acetaldehyde production. The amount of ethanol, which was the most reactive substrate, that reacted with the fastest rate was then calculated

That product is unstable and spontaneously decarboxylases into a-Ketoglutarate. In this step, NADH also becomes NAD.

The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate, CuSO4, mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu was found to be 2.1726g which meant that through limiting reagent analysis Fe was determined to be the limiting reagent and the chemical reaction was determined to be as following:-

A hot plate was preheated to 100°C. A dry 5-mL long-neck round-bottom flask was clamped over an aluminum block placed on the hot plate. Ferrocene (0.09 g), acetic anhydride (0.35 mL), and 85% phosphoric acid was added to the flask in that order of addition. A magnetic stir bar was added to the flask. Solution was stirred and heated for 10 minutes. Flask was removed and allowed to cool to ambient temperature. DI water (0.5 mL) was added and the solution was cooled to 0°C by ice bath. The solution was neutralized with 3M sodium hydroxide dropwise while stirring and cooling. PH was monitor by pH indictor paper. Solid product was isolated by vacuum

Afterwards, I grabbed a small piece of plastic wrap and placed it over the top of the flask. Then, I poked a hole in the plastic wrap. By poking a hole, it reduced foaming and evaporation when heating the agarose.

2. The type of insulation that we’ve chosen is the cotton, approximately with the same thickness for each flask. They will be changed for every trial, because for each trial, as the heat escapes from the sides of the flask in the form of water vapor, it comes in contact with the cotton, thus making it moist, and changes the capacity of the cotton to insulate. We have decided to

27. Heat the water to 40°C with an alcohol lamp by setting up the apparatus as shown in figure 3 below:

Whereas, volumetric flask has TC as its marking, meaning it is marked as a ‘to contain’.

Oxygen makes up only about 20% of the air, yet is the essential component for so many reactions. Without it fuels would not burn, iron would not rust and we would be unable to obtain energy from our food molecules through respiration. Indeed animal life on the planet did not evolve until a certain concentration of oxygen had built up in the atmosphere over 600 million years ago. The term oxidation has been in use for a long time to describe these and other reactions where oxygen is added. Oxidation, though, is only half of the story, as it is always accompanied by the opposite process reduction, which was originally thought of in terms of loss of oxygen. Later, however the terms widened to include a much broader

Abstract: A mechanism of the initiated nonbranched-chain process of forming 1,2-alkanediols and carbonyl compounds in alcohol–formaldehyde systems