A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. These reactions can be studied in a laboratory setting to better understand the underlying chemistry and the mechanisms by which they occur. In this lab report, we will explore a specific chemical reaction and examine the factors that can affect the outcome of the reaction.
The purpose of this lab is to investigate the effect of various factors on the rate of a chemical reaction. In particular, we will be studying the decomposition of hydrogen peroxide, a common chemical found in many households, using the enzyme catalase as a catalyst. The decomposition of hydrogen peroxide is an exothermic reaction, meaning that it releases heat as it progresses. By measuring the temperature change during the reaction, we can calculate the rate at which the reaction is occurring.
To begin the experiment, we will need to set up a reaction vessel and add a known quantity of hydrogen peroxide, catalase, and a solvent such as water. We will then measure the initial temperature of the mixture and begin the reaction by adding a small amount of an initiator, such as potassium iodide. As the reaction proceeds, we will monitor the temperature change and record the data at regular intervals.
There are several factors that can influence the rate of a chemical reaction. One of the most important is the concentration of the reactants. By increasing the concentration of the reactants, we can increase the rate of the reaction. Additionally, the presence of a catalyst can also affect the rate of the reaction. In our experiment, the enzyme catalase serves as a catalyst, speeding up the decomposition of hydrogen peroxide.
Other factors that can influence the rate of a chemical reaction include temperature, surface area, and the presence of an inhibitor. By raising the temperature of the reactants, we can increase the rate of the reaction, as the increased heat provides more energy for the reactants to collide and react with one another. Similarly, increasing the surface area of the reactants can also increase the rate of the reaction, as it allows for more collisions to occur. Finally, the presence of an inhibitor can slow down the rate of the reaction by blocking the progress of the reaction or by consuming one of the reactants.
In conclusion, chemical reactions are an important process in nature and can be studied in the laboratory to understand the factors that influence their rate. By manipulating these factors, we can control the rate of a reaction and potentially find ways to optimize or improve upon chemical processes in a variety of applications.
Chemical Reaction Lab Report Essay Essay on Chemistry, Evaporation, Hydrochloric acid
All sections but the title have the section explicitly labeled, usually in bold letters to differentiate it from the rest of the text, and left aligned on the page. The experimental section of your paper should be a logical, coherent recount of the experiment s conducted. Decomposition is when a large molecules are split into elements or smaller molecules. Purpose: The purpose of this lab is to further observe four types of chemical reactions. We observed 5 chemical reactions involving copper which are: Redox reaction which includes all chemical reactions in which atoms have their oxidation state changed , double displacement reaction, precipitation reaction, decomposition reaction, and single displacement reaction. The ratio that turned the blue dye colorless within 15 minutes was the 50:50 ratio of blue dye to bleach.
Lab_Report_Chemical_Reactions
With this said, remember that whatever chemical change occurs, atoms retain their identity in chemical reactions. These might include the type and size of your HPLC column, the buffer or the concentrations of chemicals. As you prepare these items for your report, remember to think of your reader. Often there are two principle investigators, and in this case both should be mentioned. Statement: How does the theoretical yield of the compound NaCl aq compare with the experimental actual yield? Afterward, the brown color disappeared and the mixture became colorless. These include: melting point range and literature value, if known , elemental analysis both calculated and found , selected peaks from the mass spectrum with assignments , selected IR peaks also with assignments , and any NMR peaks with their chemical shift, multiplicity and integration you will often find the observed coupling quoted and the assignment of the peaks.
Chemical Reactions Lab opportunities.alumdev.columbia.edu
We are only talking about chemical changes in this chapter; know the difference! Aminoacylation efficiency of duplex Ala substrates containing base pair substitutions at the 2:71 position. The question was: How does knowing the reactants and products help you classify a chemical reaction? Test tube replaced by beaker Procedure: 1. Add the acid until the reaction stops bubbling. It was assumed that a reaction did not take place if the mixture of chemicals exhibited none of these characteristics. In a decomposition reaction, one reactant makes two or more products. Instead, it is suggested that you compose: a Materials and Methods, b Figures, Figure Legends and Tables, c Results, d Discussion, e Conclusions, f Introduction and Schemes, g Abstract, and h Title. In a combustion reaction, hydrocarbon and oxygen react to form carbon dioxide and water.
