Chemical Reactions Lab Essay

i. Enzymes are macromolecules that increase chemical reactions without being consumed in the reaction. They do this by lowering the activation energy (the amount of energy that reactants need to absorb in order for a chemical reaction to take place). Every enzyme has a substrate with a unique shape and structure for it to bind to. Denaturation of proteins (when a protein unravels and becomes inactive), and change in the shape of the enzyme or substrate all influence the activity and…

chemically reacted with many other elements and compounds. The purpose of this experiment was to identify the different reactions that occurred through the lab and the different types of reactions. Throughout the lab, copper was put through series of reactions to see the different combinations and how its properties were affected. Materials and Method: The first part of this lab was to set up the apparatus to properly execute this experiment. The apparatus included a hot plate that was placed…

the Conversion of Four Different Substrates to Pr oduce Benzoquinone. Amir Akhras Lab partners: Monica Elabed, Andres Velazquez, and Roland Rencz Biology 201 Instructor: Dr. Kara Nuss October 28, 2014 ABSTRACT Enzymes are catalysts that speed the reaction of substrates to produce products. They achieve this by lowering the energy of activation (EA) but they do not change the nature of the reaction. The objective of this experiment was to test which of the four substrates will…

CHANGES IN CHEMICAL REACTIONS INTRODUCTION This practical experiment is based is based on the theory of Law of Conservation of Mass stated by Antoine Lavoisier. Antoine Lavoisier was a French nobleman who had a major influence on the history of chemistry and biology. Today he is considered to be the “father of modern chemistry.” In all his experiment he supported the Law of Conservation of Mass. Antoine stated this in his theory, “The law of conservation of mass states that mass can neither be…

water. During chemical dehydration covalent sigma bonds are broken into a hydroxyl group and a covalent sigma bond is broken to a hydrogen on an adjacent atom. A covalent pi bond forms between the two atoms on which the OH and H are bound and therefore chemical dehydration forms a new water molecule along with a new double bond. In this experiment 2-methycyclohexanol will react with phosphoric acid, the phosphoric acid will act as a catalyze. Drierite will be added to the reaction flask to…

temperature, PH, and concentration of the enzyme. Introduction: In our lab “Enzyme Action” we were testing the enzyme reaction with different substrates. In our lab we tested 3 different enzymes and substrates to find out when they are at the highest potential. Enzymes are necessary for life because they keep our bodies chemical reactions at a normal pace. Enzymes have the ability to keep a human body at homoeostasis. In our lab we were finding when the enzyme is the most active while…

The ultimate purpose of this lab is to find how much copper is in brass using the visible spectroscopy, in addition to the introduction of Beer’s law, a physical law that can be utilized to determine the unknown concentration of a metal ion in a solution if its absorbance is calculated; you can accurately measure it by means of a standard graph called a calibration curve. Also colorimetry, a technique “used to determine the concentration of colored compounds in solution” (Housecroft, Catherine)…

Next, compound X is heated in a beaker with the burner. Then C20H14O4 is added with a dropper pipet. Observations are made. (1) Second of all, using a lab scoop, 0.4 g from compound X is put into a 50 ml beaker. It is weighted out with a digital balance. Then, the first step of the experimenting procedure is: with a lab scoop, a small amount of the substance goes into one of the test tubes. After that, phenolphthalein is added using a clean dropper pipet. Observations are made. This…

Examining Substitution Reactions of Several Alcohol-Containing Compounds Several Experiments were performed using substitutions reactions with hydrogen halides. These results and favor methods or pathways for the several alcohols were observed and will be discussed. Introduction for all the material Scheme 1. Substitution of 3-(m-tolyl)propan-1-ol to form 1-(3-bromopropyl )-3-methylbenzene. Aromatic materials used in this reaction has high boiling point thus the reaction was heated…

catalysts that carry out thousands of chemical reactions that occur in living cells. A catalyst speeds up a chemical reaction by changing the rate of the reaction without being consumed by the reaction. In an enzyme - catalyzed reaction the substance acted upon that is called substrate binds to the active site of the enzyme. An enzyme-substrate complex is formed held by hydrophobic interactions, hydrogen bonds and ionic bonds. The substrate is converted to reaction products by catalytic action…