Reaction

Title The Copper Reaction Cycle demonstrated in the experiment shows that copper can transform into different states of matter, while still conserving mass and returning back to its original room temperature solid state. Authors Makenzie Roybal * and Erin Wimberley Section CHEM 111-554 Introduction A topic of allure to many scientists is how high levels of copper intake can result in the disruption of human metabolism, and how it can degenerate the biological well being of ecosystems. The…

Diels-Alder Reaction Objective: The objective of this lab was to do a diels-alder reaction using anthracene, maleic anhydride, and xylene to create 9,10-dihydroanthracene, 10-, -succinic acid anhydride. Experimental: Anthracene (1.00g, 5.61x 10-3 mol), maleic anhydride (0.75g, 7.61x 10-3 mol), xylene (5mL, 4.71x 10-2 mol), and a stir rod were added into a round-bottomed flask. The round-bottom flask was then moved to the hood where the it was attached to a distillation column, placed on…

“Social Reactions to Adult Crying: The Help-Soliciting Function of Tears”, which I felt would mirror well with this week’s chapter on social psychology. Description of the rational for the study To gain a better understanding into the functions of adult crying and the general social reactions of those who are around the affected individual by comparing how people respond to an adult who is crying as opposed to non-crying individuals and which situational factors can influence the reactions of…

The rate of reaction in an enzyme catalysed reaction is also affected by the presence of inhibitors. In this experiment, the effect of temperature on reaction rate of enzyme will be studied. Peroxidase will be used as test enzyme and the variable to be studied is temperature (°C). At first, the experiment will be carried out at room temperature of 20°C. The temperature of the experimental setup will then be increased by keeping the reactants in a water bath at a temperature of 50°C. The enzyme…

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…

activity. We have known that biological chemical reactions are catalyzed by enzymes, so in the experiment 4.1 we tested the properties of catalase, and its presence in potato and sheep blood. The result was we could see the oxygen gas- bubbling by catalase’s presence. Not only that, enzymes are known as reusable, but they are not altered by their reaction with any substrate. In experiment 4.2, we could see that enzymes can continue to perform the same reaction endlessly when substrate is…

FePO4 stands for Iron(III) Phosphate. Although α-FePO4 and β-FePO4 may sound quite similar as they may only differ in terms of the α and β, they β are actually very different in terms of the crystal structures and crystal chemistry of quartz. Based on the research article which was provided in coursera, it states that FePO4 is studied across a range of temperatures ; 294K to 1073K by neutron powder diffraction. The different range in temperature shows different structures. For instance, at…

second single replacement reaction experiment, zinc metal is place in a 2mL of hydrochloric acid solution; during this reaction, bubbles are forming inside the test tube which indicates the formation of gas. After the reaction, the HCl solution appears to still have bubbles in its presence and the zinc metal is fizzing. In this reaction, the zinc reacts with the hydrochloric acid to form zinc chloride and hydrogen gas (equation 10). For the first double replacement reaction, barium nitrate…

Single Replacement Reactions and Double Replacement Reactions A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction. The evolution of energy as heat and light, production of gas, formation of a precipitate, and color change are 4 indicators of a chemical reaction. Two out of the six types of reactions are the single and the double replacement reactions. During single…

Kinetic can be defined as a study of the speeds or the rates of chemical reactions. The factors that could affect the rates of the reactions are physical state, reaction temperature, catalysts, pressure, concentration of solution, and reaction time. The change of the speed of the reaction can be predicted based on the different reaction conditions. Kinetic study is important because it can describe information about the reaction mechanism. The concentration has affected the frequency which the…