Redox Essays

  • The Copper Cycle

    1051 Words  | 5 Pages

    experimental errors, some percent of copper is usually not recovered in the last step. Four types of reactions will be performed in this experiment: precipitation reactions, redox reactions, decomposition reactions, and acid base

  • Olibanum Lab Report

    1480 Words  | 6 Pages

    3.7 Homogeneous Catalytic reduction of 4-nitrophenol To investigate the redox catalytic activities of the synthesized AuNPs using the olibanum gum, we selected a well-known catalytic reaction the transformation of 4-NP to 4-AP by sodium borohydride (NaBH4) as a model reaction and the reaction was monitored using UV–visible spectroscopy. The absorption peak of 4-NP undergo red shift from 317 nm to 400 nm immediately after addition of NaBH4, corresponding change in the colour of the solution from

  • Copper 10-Phenanthroline Lab Report

    756 Words  | 4 Pages

    The electrochemical behaviour of copper-1,10-phenanthroline (phen) complex in aqueous and in water-acetone mixed solutions was studied by CV-thin layer spectroelectrochemistry. In aqueous solution, [Cu(II)(phen)2]2+ complex electrochemically reduced to [Cu(I)(phen)2H2O]+ with maximum absorption at 405nm, and followed by a reversible chemical reaction. The formal potential, E0=0.078V, the number of electron transferred, n=1.0, and the equilibrium constant of the following chemical reaction, K=0.107

  • Glutathione Case Study

    751 Words  | 4 Pages

    Evaluate the role of Glutathione in combating oxidative stress The balance between the production of reactive oxygen species (ROS), also known as free radicals, and antioxidant defences is defined as oxidative stress1. When cellular antioxidant defences are insufficient to keep ROS below a toxic threshold, oxidative stress causes damage to cells. Oxidative stress can be caused by an increase in free radicals and other ROS, or by decrease in antioxidants such as glutathione (GSH). GSH is a naturally

  • General Chemistry: Lab Experiment On The Copper Cycle

    1017 Words  | 5 Pages

    Ashley Wilson 5 March 2018 General Chemistry Lab – Section 202 Experiment 7- Copper cycle Purpose: A series of reactions that convert a piece of copper metal, via several different copper- containing compounds, back into its original elemental form will be observed. Copper wire was dissolved in nitric acid. NaOH was then added to the dissolved copper solution, precipitating into Cu(OH)2. The precipitate was then placed on a hot plate and stirred until it became CuO. After sitting , the CuO was

  • Fepo4 Lab Report

    932 Words  | 4 Pages

    Paragraph 1 The research paper talks about how the temperature of formation and crystallinity of iron phosphate, FePO4, is critical in determining its electrochemical behaviour. FePO4 is known to crystalline in several different structures. At 600 degrees, FePO4 irreversibly changes into an electrochemically inactive quartz-like structure, which shows that the olivine form is metastable. FePO4 at a high temperature is limited to measurements of call parameters. In the case of α-phase FePO4, cell

  • Oxidizing Agent: Gains Electrons

    834 Words  | 4 Pages

    When you think about a nail rusting and food spoiling, these are common examples of processes that involve oxidizing agents. __Oxidizing agents__ are substances that gain electrons in a chemical reaction - because of this action, oxidizing agents are also known as __electron acceptors__. Let us visualize what an oxidizing agent is. We said that earlier that oxidizing agents accepts electrons. Let us recall that electrons have a ''negative charge''. When oxidizing agents gain a negative charge, it

  • Sulfur Research Paper

    1825 Words  | 8 Pages

    2.5.7 Sulfur Sulfur content in biodiesel is limited to 15 ppm maximum by ASTM D6751.Therefore, it is important to know the original feedstock sulfur content since it can contribute to biodiesel sulfur content. The determination of sulfur in the feedstocks was done using ASTM D7039, Standard Test Method for Sulfur in Gasoline and Diesel Fuel by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry [10]. Sulfur analyzer manufactured by X-Ray Optical Systems used to measure the

  • Redox Reaction Lab Report

    1798 Words  | 8 Pages

    compound losing electrons by binding with oxygen. Reduction occurs when a separate compound accepts these electrons. In this particular experiment, the enzyme peroxidase, which is specified to break down hydrogen peroxide, will be used to catalyze the redox reaction. The substrates will be reduced guaiacol and hydrogen peroxide (H2O2). This reaction will produce oxidized guaiacol, oxygen gas, and water. In the oxidation of guaiacol it will change colors, this is what shows the reaction has occurred. To

  • Waste Cooking Oil Case Study

    1002 Words  | 5 Pages

    and esters. In the case of hydrolytic reaction, the steam produced during the processing of food containing water causes the hydrolysis of triglycerides, resulting in the formation of free fatty acid, glycerol, monoglycerides, and diglycerides. High free fatty acid level, i.e. quantum of free fatty acids greater than 1 mg/g KOH, results in generation of high amounts of undesirable soap simultaneously with transestrification reaction. In the alkali-catalyzed process, the presence of free fatty acid

  • Gaseous Messenger Research Paper

    1402 Words  | 6 Pages

    1.1.1 General introduction of gaseous messengers Small molecules of endogenous gases which involve in cellular signaling thereby exerting physiological functions are termed as gaseous messengers or gasotransmitters. Gasotransmitters are a class above the receptor based signaling molecules as they are easily permeable across membranes and directly modify their intracellular targets.1,2 Nitric oxide (NO), Carbon monoxide (CO) and Hydrogen sulfide (H2S) are the enzymatically produced gases with

  • Synthesis Of Pbse Lab Report

    1217 Words  | 5 Pages

    2. Experimental method 2.1 Synthesis of PbSe and PbSe: Nd nanoparticles Neodymium doped PbSe samples (Pb1-xNdxSe) with x=0, 0.05, 0.10 at pH 5 were prepared by wet chemical precipitation technique, adding hydrazine hydrate as the precipitating agent at room temperature. Freshly prepared aqueous solution and analytical grade lead nitrate (Pb(NO3)2), neodymium oxide (Nd2O3) and selenium dioxide (SeO2) were used as precursor materials. Initially, 2 g of lead nitrate and 0.555 g selenium dioxide were

  • Describe The Process Of Photosynthesis

    840 Words  | 4 Pages

    In photosynthesis, carbon dioxide and water are used to produce glucose and the by-product oxygen, and there is an intake of energy. In respiration, on the other hand, glucose and oxygen are broken down into carbon dioxide and water, and there is a release of energy. Basically, the products of one serve as the reactants of the other, and vice versa. As the name suggests, light-independent reactions do not need the presence of light to function. The process occurs in the stroma and it produces G3P

  • Fenton's Reagent Parameters

    1355 Words  | 6 Pages

    Effect of Fenton’s Reagent Parameters: Photo-Fenton’s process is highly sensitive to the initial H2O2, iron catalyst concentration and pH value. This reagent is extremely producer of .OH radicals and the reaction rate is limited by the .OH generation. Traditionally, hydroxyl radical has been viewed as the workhorse of hydrogen peroxide oxidation systems. Thus, the main source of OH radicals and oxygen depends on the hydrogen peroxide. Fig. 6 (a) shows the effect of hydrogen peroxide increase on

  • 2-Propanol Reaction Lab Report

    1265 Words  | 6 Pages

    In this experiment, two alcohols, 1-propanol and 2-propanol, were oxidized through combining each with an excess amount of chromic acid solution. The purpose for conducting this experiment was to determine the reaction rate constant at which aldehydes and ketones formed from the respective oxidation of 1-propanol and 2-propanol. From this value, the half-life of the alcohol during the reaction could be derived. The progress of the reaction was tracked through the color change of the solution through

  • The Pros And Cons Of Animal Welfare

    920 Words  | 4 Pages

    Animal welfare has been a controversial subject in recent years. Nowadays, consumers are placing more attention to their consumption of animal product. The fact that there are diverse consumers with dissimilar perspectives on the meat industry makes animal welfare a complex international public policy controversy that also needs to take economical, scientific, cultural and ethical dimensions into consideration. The government can change the consumption behavior of the consumers and the production

  • Essay On Catalase

    762 Words  | 4 Pages

    1. The reaction is an oxidation and reduction reaction. Bubbles were observed because oxygen is being release from the reaction as a gas as part of the reduction part of the reaction. Enzymes work efficiently at a body temperature of 37o C therefore if the enzyme was boiled before adding it to the peroxide there would be no bubbles due to the fact that the enzyme would be denatured. The enzyme would be inactivated. 2. The catalase which is the enzyme breaks down the substrate hydrogen peroxide forming

  • Emmett Teller Analysis

    873 Words  | 4 Pages

    . Experimental 2.1 Catalyst preparation In this paper we have to use different types of nitrate precursors to preparation of the catalysts. The precursors we used to preparation of the catalysts are cobalt nitrate, cerium nitrate, copper nitrate and manganese nitrate. All the chemicals are used for manufacturing of the catalyst are A.R. grade and they are purchased from Otto Chemie Company. The different types of nitrate precursors was used to preparation of the catalyst and they are dried at 120°C

  • Pros And Cons Of Chemical Products

    849 Words  | 4 Pages

    The 20th century brought an explosion of new chemical products for consumers. Chemicals bring about benefits upon which modern society is entirely dependent. From 1 million tons in 1930 to several hundreds of million tons today, the global production of chemicals has a significant increase. The chemical industry continuously converts raw materials, such as oil, natural gas, air, water, metals, and minerals into thousands of different products. Chemical products are used at work or even at home every

  • Cross Condensation Of Aldol Lab Report

    838 Words  | 4 Pages

    Cross Condensation of aldol 2015007632 Dowrie, K Contents Reaction 1 Introduction 1 Experiment Procedure 2 Experimental results 3 Table of calculations 3 Calculations 3 NMR 4 TLC 4 References 5 Reaction Introduction An aldehyde reaction is when aldehydes and keytones, both containing an α-hydrogen in the presence of an alkali group condenses and forms an enone. Acetone has α-hydrogens on each side. The proton can be removed and therefore giving a nucleophile anion. The aldehyde carbonyl is more