Single displacement reaction

revolve around chemical reactions. Without the presence of enzymes some of life's processes would not happen easily. An enzyme is a macromolecule serving as a catalyst, they are generally a protein based molecule, as it is in the lab, Enzymes are organic catalysts that control the rate of chemical reactions in cells while not being permanently changed or without being consumed, which makes enzymes different from other proteins. In general, enzymes speed up the rate of reactions by lowering the…

knowledge and understanding of enzymes is imperative. The first part of this experiment deals primarily with PTU and catechol oxidase. Enzymes work by using substrates (reactor molecules) to increase the chances of a reaction taking place. Enzymes are not used or changed during a reaction, they simply bind with the substrate at the active site. This creates the place where catalysis actually occurs, called the enzyme-substrate complex (Freeman). Catechol Oxidase is the enzyme extracted from…

called the Grignard Reaction lab. The purpose of this lab was to perform the Grignard reaction and to obtain the final product triphenylmethanol from a halide, phenylmagnesium bromide and the starting material, methyl benzoate along with the Grignard reagent. Bromobenzene, magnesium turnings, and anhydrous ether were needed to form the Grignard reagent. To synthesize the reagent, react the reagent with methyl benzoate to form a tertiary alcohol. The objective of the Grignard Reaction lab was to…

percent yield of the esterification reaction used to produce aspirin. This reaction was catalyzed by concentrated H2SO4, but since it is not consumed during the reaction, it does not affect the stoichiometric calculations. In order to determine the limiting reagent, the moles of reactants were calculated (Part A). Part B of the calculations illustrates the amount of aspirin produced by each reactant based on 1:1 mole ratio defined by the balanced equation of the reaction. According to these…

chemical reactions to take place much quicker than reactions would occur on their own. Enzymes function as catalyst, which means they speed up reactions by providing an alternative reaction pathway of lower activation energy (cite). Each step of a pathway typically requires a specific enzyme, without the specific enzyme, the pathway can not be completed. In addition, enzymes do not undergo permanent reactions and remain unchanged by the end of the reaction. Enzymes catalyze chemical reactions…

ssment Page 42 1. Two categories that are used to classify properties of matter are extensive and intensive. 2. All samples of a given substance have the same intensive properties because every sample has the same composition. 3. The three states of matter are solids, liquids, and gases. 4. Physical changes are grouped into two categories known as reversible and irreversible. Reversible changes are changes from one state to another. Irreversible changes are changes that cannot change from one…

dissolves in a reaction of: CaCl2 Ca2+aq + 2Cl1-aq while NH4NO3 dissolve in a reaction of: NH4NO3 NH41+aq + NO31-aq . As shown in these reactions, when ionic compounds dissolve in water, they break into their individual charged ions. The compounds are held together through ionic bonds, but when they dissolve, ionic bonds are broken and ion dipole attractions form instead. This change in bonding indicates that there is a change in energy, which can create endothermic or exothermic reactions.…

The purpose of the whole lab is to use my knowledge of the periodic table to determine the identity and physical properties of each unknown element. To find the unknown elements we looked at the characteristics of the other elements and grouped the ones that were similar and belonged in the same column. By looking at the characteristics of the unknown elements if it seemed to belong in a group with others with a blank we assumed it belonged there. Mendeleev was a scientist who came up with the…

The purpose of this lab is to understand how the elements in similar groups are together because of similar properties the elements share. Like Mendeleev, we had made connections toward the creation of the periodic table. When finding the unknown elements we used other known elements as guides and looked for similar properties. Like the Periodic Table today, it is organized through similar properties of each element and categorized in groups. Dimitri Mendeleev was a chemist from Russia who lived…

54) The following graph shows three different stresses on the reaction. For each stress, numbered 1, 2, and 3 on the graph, identify the stress that has been applied to the system and using Le Chateliers principle, explain why the graph changes the way it does. 1) At the point marked #1, all three concentrations gradually increase, showing that heat is added. The addition of heat puts stress on the system, so the equilibrium shifts to the right to partially undo “stress” and produce more…