Reaction rate constant

Chapter 4 - Discussion A standard curve of p-nitrophenol was drawn at the start of the project, before any enzyme assay of the fractions. The standard curve is set up so the equation of the line can be used to measure the enzyme activity in each sample fraction. P-nitrophenol shows a linear relationship with acid phosphatase. An Enzyme assay gives the activity levels of acid phosphatase in each fraction. The results from each fraction were placed into the equation of the line from the standard…

I: Introduction: a. background information- Physical Changes are changes that do not involve a change in molecular structure. They can be identified by a change in size, a change in shape, or a change in the state of matter. Chemical changes are changes that involve the re-arrangement of atoms in the molecule. They can be identified by a color change, if a new gas is given off, if a precipitate or new solid forms, and if light, electricity, or heat is given off. b. observations- The observation…

Measuring the Average Catalase Reaction Times of Solanum tuberosum Supernant in Hydrogen Peroxide Julie Fitzgerald Delano Woods Biology 103: Botany Professor Silady, Smith February 23, 2017 INTRODUCTION This investigation is geared towards observing the enzyme reaction times in Solanum tuberosum, also known as the common potato, depending on the temperature of the catalase. During the lab, students tested the reaction times of the catalase when placed in hydrogen peroxide when the…

To improve the yield of the ester the reaction should be heated using a high temperature. This would favour the formation of the products in this reaction, as the formation of an ester (esterification) is an endothermic reaction. Thus use of a high temperature will push the equilibrium to the right hand side, and a larger yield of the ester will be produced. To improve the yield of the Ester the reaction mixture could be refluxed for longer period of time so that more reactants are converted…

As the temperature increases, the rate of reaction increases until it has reached the optimum temperature above 37°C where the temperature is very high then the reaction rate will decrease. In the data table shown above, there is a similar pattern from increasing the temperature will increase the rate of reaction and as the temperature slowly increases to a certain point then the reaction rate will decrease. When the temperature increase above 37°C, then denature will occur. Also, the…

are catalysts that contain proteins. Catalysts are the part of the product that speeds up a reaction. Only reactions can occur when the right enzyme ends up finds the right material to produce a process. A low pH is a good environment for an enzyme as well as a low temperature. After the reaction, no enzymes are used up. They can be used again and again in reactions, once an enzyme is used in one reaction, it can be used in another. Enzymes are made up of proteins and proteins are made of of…

Introduction The effect different temperatures have on the rate an enzyme works was tested by this lab. The concentration of the enzyme catalase in different types of cell was also tested. Enzymes are balls of protein that change a specific substrate into a product by contact at the active site. Enzymes are reusable and once they finish tuning one substrate into a product, it moves on to the next substrate it bumps into in just the right way. The enzyme catalase, which this lab focuses on, can…

different liquids, to conclude the role of the molecular size and structure of the intermolecular forces. Part A: In the first part of the experiment, the temperature changes will by measuring by the liquids evaporation, and since it is an endothermic reaction, the temperature will decrease. The temperature probes will be connected, and the computer will prepare to collect the data, as a first step. Two…

DISCUSSION OF RESULTS: Answer the following Questions: 1. How did changing the angle of the slope affect the acceleration of the object? Use information from the summary table and/or graph. According to our data, the larger that the slope was, the faster the acceleration of the object was. Although, this was not the same for the 30° angle and the 40° angle. This may have occurred due to an error in recording the data or a bad ticker timer being used. 2. What forces are acting on the object…

The rate at which a reaction takes place can be affected by the temperature, the concentration, the particle size, and by using a catalyst but two that really affect the reaction are temperature and concentration of the solute and solvent. The rate of a reaction is determined by the temperature and the concentration which in this case determine how fast or slow the reaction will occur. In both cases something is being increased, for example, placing solutions A and B in the warmed water…