Reaction rate

the reaction. We then added KMnO4, drop by drop, to see how much hydrogen peroxide remained in the solution, which was our dependent variable. An enzyme is a catalyst, and it has two fundamental characteristics that it is known for. One of these things it that it can increase the rate of a chemical reaction without being changed or destroyed in the reaction. The second is that they don’t alter the chemical equilibrium between the reactants and the products while they speed up the reaction. …

The Reaction of a food dye with bleach Introduction The overall purpose of the experiment was to determine the order in respect to the blue dye and the rate constant (K). With these found however, the overall rate law in the reaction between blue food coloring and the bleaching agent within commercial Clorox can be found. The orders in a rate law equation represent the relationship between the concentration of a given element or molecule and the overall rate, for example, when a reaction in…

performed in order to demonstrate the principles of nitration through electrophilic aromatic substitution. It also examined the effects of bromine on an aromatic ring, ortho-para vs. meso directing. The second experiment was performed to compare the reaction rates of electrophilic aromatic bromination with different arenes. Data and Results In the gas chromatogram, there are two large peaks. The first peak at 0.653 minutes with an area of 133,352 uV per second, 31.95% of the total area. The…

Aqueous-Minerals Reactions: Chemical reactions involving aqueous species and mineral species are heterogeneous and slower compared to aqueous species reactions, thus modeled as rate dependent chemical reactions. This means that when mineral species (N_m ) are not is equilibrium with the aqueous species, the minerals can either dissolve or precipitate. As shown in equation R11 of an example of calcite dissolution/precipitation, a mineral species (Calcite) is involved in a reaction with only…

the phenol was purged in ozone in absence of hydrogen peroxide. The removal rate for the alkaline solution (pH11) at after 40 minutes was at its highest at 7.89%. Direct procedure involves organic…

investigation to establish the effect of different temperatures (from 0°C -100°C) on the production of oxygen gas in a potato catalase reaction, using hydrogen peroxide as a substrate. The oxygen gas produced will be measured using a gas pressure sensor. Introduction: Enzymes are proteins, known as biological catalysts that increase the rate of reaction in a biochemical reaction without being chemically altered. The human body consists of various different types of enzymes, each with different…

the action of enzymes to carry out the reactions of life. According to the text in Campbell Biology, enzymes are biological catalysts. These globular proteins speed the rate at which metabolic processes occur by lowering the activation energy or the energy barrier required to transform reactants to products. Each enzyme is specific, each containing active sites destined for a substrate. Substrates are the reactants or starting materials of chemical reactions. The binding of substrate to…

changes the conformation of the enzyme and its active site, so the substrate is not able to bind. This prevents the enzyme from lowering the activation energy of the reaction, and the reaction rate is reduced. However, allosteric inhibitors are not the only molecules that bind to allosteric sites. Allosteric activators can increase reaction rates. They bind to an allosteric site which induces a conformational change that increases the affinity of the enzyme's active site for its substrate.…

Catalysts and Inhibitors work by providing an alternative reaction pathway for the breaking and remaking of bonds in chemical reactions, changing the speed of the reaction. They are neither consumed in the reaction. Rather, they alter the amount of activation energy required. Different reactions require different catalysts, as well as different reactions require different inhibitors. The reaction energy path controls the speed of the reaction. The molecules follow the path of least resistance,…

PART A. Hypothesis: The Effect of Catalase Concentration It was hypothesized that if different number of disks would relate to the rate of the reaction produced then increased number of disks would result in increased rate of reaction. This occurs because an increased enzyme presence allows the substrate to rapidly change into a product providing all other factors such as substrate concentration, pH, ionic concentration, and temperature remain unchanged or fixed. ("What Is the Effect of…