Reaction rate

activity of catalase can be determined by measuring the decrease in H2O2 concentration which is the substrate. Introduction: An enzyme is a large protein that acts as a biological catalyst which changes the rate of a reaction. It provides an active site which is an environment where a reaction can take place this is made up of amino acids. The structure and shape of the substrate, the structure and shape of an enzyme and the substance upon which the enzyme works all have to match exactly.…

was to indentify the details of shifting in equilibrium reactions and determine how the adding of a stress can affect a reaction. A chemical reaction that is in equilibrium is reversible, where a reactants can create products and products can go back to products. Equilibrium is reached when the rate of a forward reaction is the same as the reverse reaction and the concentration of the reactants and products are equal. In a written reaction, equilibrium is represented by two arrows going in…

1. The different reaction rates between the potato and chicken liver indicate that one of the substances contain more catalase than the other. The reaction rate between the chicken liver and the hydrogen peroxide was quite fast as opposed to the potato and hydrogen peroxide which was at a slow to a moderate rate. This is most likely due to the fact that cellular respiration occurs more often in animals than plants, meaning that they would have a higher ammount of catalase. 2. Test tube 5 had a…

Chemistry Lab Report NAME: Serina Alashi DATE: TITLE: Decomposition reaction: hydrogen peroxide (H2O2) decomposed into hydrogen and oxygen ( H2 and O2) RESEARCH QUESTION: How will changing the concentration of hydrogen peroxide affect the rate of reaction, that is represented by the increase in pressure over time? Introduction: Hydrogen peroxide is a chemical compound of hydrogen and oxygen. It is a very strong oxidant but weak in water solution. Hydrogen peroxide decomposes into water…

Catalysts are substances that increase the rate of chemical reactions without itself undergoing any permanent chemical change. It speeds up the reaction by lowering the activation energy required. An enzyme is a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction. Enzymes carry out the thousands of chemical reactions that occur on cells, or the basic units of structure and function of an organism. Usually, they are polymers of thousands…

Discussion In this experiment, the chemical reaction between acetone (CH3COCH3) and iodine (I2) to make CH3COCH2I, I-, and H+ was observed. Under normal circumstances, this reaction would occur very slowly. In order to speed up the process, hydrochloric acid (H+) was used as a catalyst. A catalyst is a substance that can speed up a reaction by lowering the activation energy of the reaction. It does this by changing the mechanism of the reaction and providing more energetically favorable…

macromolecules that catalyze chemical reactions. Enzymes are usually proteins; however, it has been discovered that some enzymes are RNA molecules. The molecules at the beginning of the process to which enzymes act upon are called substrates, which are converted to the products by the actions of the enzyme. Almost all metabolic processes require enzymes to catalyze reactions to a rate that is fast enough to sustain life. Enzymes increase the rate of the reaction by lowering the activation energy…

Abstract The purpose of this investigation is to determine whether the temperature can affect the reaction rate of enzyme activity. The enzyme activity was measured by five different temperatures, separated in tubes which later got measured by their height of foam after 10 minutes. Freshly-prepared potato juice was used as the enzyme for catalase. Since temperature is measured by the kinetic energy of molecules, the higher the temperature, the more movement of molecules. The lowest temperature…

The Effect of Temperatures on Rate of Reaction of Alka-Seltzer Introduction: A. Background This particular experiment consists of a purpose of finding out the effect of various temperatures on the rate of reaction of the Alka-Seltzer tablets. Alka-Seltzer is a medical drug that acts as a pain reliever or an antacid, which helps neutralize stomach acidity, such as heartburn. Alka-Seltzer is a form of a baking soda which is also known as sodium bicarbonate, (NaHCO₃). When sodium bicarbonate…

II. Introduction An enzyme is a specific type of macromolecule known as a catalyst, that accelerates the rate of chemical reactions by taking part in the reaction without being consumed (Wilson, et al 2015). Enzymes participate in these reactions inside the cell and decrease the activation energy required to begin the reaction. These catalytic agents bind to substrates that are changed into products. A component of the enzyme that is responsible for binding to substrate or the reactant is…