Chemical Reactions Lab Essay

Effects of Temperature and Substrate on Catalyst Enzymes Ryan Smith Lab Section 030 Abstract In order to turn hydrogen peroxide into water and oxygen by using enzyme called a catalyst. To determine the effects of temperature and substrate concentrations we preformed an experiment testing the effects on the catalyst enzyme reaction. The hypothesis for our first experiment was if the substrate concentration is larger than the catalyst enzymes activity will be faster as well. The result followed…

Enzymes are protein molecules that significantly speed up the rate of virtually all of the chemical reactions that take place within the cell. In the following lab was to examine an enzyme that is found in pineapples. That enzyme is bromelain its breaks down protein into their protein into their amino acid by a process of hydrolysis. They are found in tropical areas like Hawaii, Thailand, and Brazil. For the first experiment the hypothesis was that the when gelatin was added to the water, fresh…

Aims of Experiment 1. To extract benzoic acid from the toluene-benzoic acid mixture, using oxidation-reduction reaction (chemical properties) and difference of solubility (physical properties) –Expt. 1 2. To learn how to recrystallize the solid organic compounds well for getting more purified compounds –Expt. 2 3. To find which differences between raw product and recrystallized product are observed. –Expt. 2 4. To determine melting point range of organic compounds with digital melting point…

Raj Bose IB Chemistry HL Period 4 15/10/2014 Research Question: How does increasing the concentration of copper (II) nitrate solution in a voltaic cell affect the voltage produced? Variables: Variables Description of the variable Method of controlling variable Independent Concentration of copper (II) nitrate solution used in each trial of the experiment. N/A Dependent The voltage being produced by the two electrodes which is measured by the voltmeter N/A Controlled Concentration of the zinc…

15SPE072X 27012016 EXPERIMENT 7: Cannizzaro reaction and reaction of benzaldehyde with ethylene glycol Introduction: From the first experiment, the reaction of benzaldehyde and potassium hydroxide will produce two products which are benzyl alcohol and benzoic acid. We are going to look at how to get this two products separated by using their different chemical properties. For the second experiment, benzaldehyde ethylene acetal is formed when the reaction done under acidic environment.…

burn in oxygen to form carbon-di-oxide and water with the release of significant amount of energy. This process is known as complete combustion. Since, this reaction causes release in energy to the atmosphere and decrease in energy of the alcohol, it can be characterized as an exothermic reaction. The amount of energy released by this reaction depends primarily on the number of carbon atoms in the alcohol. The amount of energy released by the complete combustion of a compound per mol is defined…

Danika Ng CHEM 1252 L Exp 12: Thermodynamic Analysis of Chemical Equilibria INTRODUCTION The reaction being done with borax and HCl is an acid base reaction. The K constant expression of the reaction is Kc = [Na^+][B4O7^-2]. A titration is needed for this experiment because when a strong acid with a known concentration is added to a weak base, the unknown concentration of the weak base can be found, which can then find the moles of the weak base, which can then find the Kc. The first law of…

Despite the practical and informative nature of the Williamson ether synthesis of 2-bromo-4-methoxy-phenoxy benzyl ether. This reaction was not conducted due to an error made in which the initial product was thrown away instead the actual second phase of this synthesis was the Williamson Ether synthesis of 4-methoxy-phenoxy benzyl ether. Figure 4. Williamson Ether Synthesis 4-methoxy-phenoxy benzyl ether ____________________________________¬___ In spite of this outcome there was still much…

description of an invaluable chemical reaction (The Nobel Prize in Chemistry 1950). The reaction they described was for the formation of carbon-carbon bonds in a six membered ring with exceptional control of its stereochemistry in one step (Diels-Alder Reaction Gains Nobel Prize). This was an important discovery due to the fact that six membered rings are abundant natural products and man-made products. Several new compounds were synthesized as a result of the Diels-Alder reaction including:…

VAT) R 65 160.00 • PLANT/LAB SAFETY Personal protective equipment is used as a temporary protection for workers against hazards, this depend on the work conditions and process being performed. Mintek requires the staff to wear their personal protective equipments when working and also walking in certain areas. This includes safety glasses that protects the eyes from the chemical liquids, hard hat which protect head from falling material, ear protection…