Hydrogen peroxide Essays

  • Hydrogen Peroxide Investigation

    1713 Words  | 7 Pages

    catalytic decomposition of hydrogen peroxide Research question: How will varying the concentration of hydrogen peroxide affect the rate of reaction measured by collecting the amount of oxygen produced figure 1 shows how catalyst provide alternate pathways Background: For my internal assessment I will be investigating the catalytic decomposition of hydrogen peroxide using manganese(IV)oxide( MnO2 ) as a catalyst. I will be testing how varying concentrations of hydrogen peroxide will affect its decomposition

  • Hydrogen Peroxide Decomposition Lab Report

    815 Words  | 4 Pages

    The purpose of this experiment was to analyze the rate of the catalyzed decomposition of hydrogen peroxide in regard to the effects of concentration and temperature. 2H2O2 (l) —I-—> 2H2O (l) + O2 (g) In part one of the experiment, catalyst KI was added to varying solutions of 3% hydrogen peroxide and DI water and the composition of hydrogen peroxide was observed. This was observed by collection the volume of oxygen gas produced during the decomposition, and measuring its volume. From that, volume

  • Hydrogen Peroxide Research Paper

    1257 Words  | 6 Pages

    Does Hydrogen Peroxide Whiten Teeth Hydrogen Peroxide recently has captured the spot as it becomes one of the commonly used methods for teeth whitening either through the dentists, or through using it as a whitening agent in many of the commercial whitening products. So, what is hydrogen peroxide? How it can be used for whitening the teeth? And is it good for your teeth? What is Hydrogen Peroxide And How Does It Works? Hydrogen Peroxide can be described as an oxidizing agent that is formed through

  • Hydrogen Peroxide Temperature Lab Report

    838 Words  | 4 Pages

    Temperature on Hydrogen Peroxide Solution in Water Khalid Al Sabeeh Ms. Dobrin 11-G Chemistry HL Jan 5, 2015 Abstract: Within this lab yeast was added to hydrogen peroxide solution in water. Temperature was the factor to be tested. In all trials, the initial and final, when yeast was added temperatures increased by 10˚C respectfully per trial. This is because hydrogen peroxide is unstable and when decomposed it increases the thermal temperature. Introduction: Hydrogen peroxide (H202) is an often-unstable

  • Potato Enzyme Lab Report

    1182 Words  | 5 Pages

    pertained to the enzyme known as catalase, which converts hydrogen peroxide into oxygen. Due to peroxide being toxic to the tissues of both plants and animals, both possess the enzyme catalase, which breaks into two non-toxic compounds: water and oxygen gas. Enzymes are proteins that react to certain substrates to create a product, and continue doing so afterwards. Methods and Materials To test reactions between catalase and hydrogen peroxide, groups of three to four people were formed. A scale of

  • Enzyme Activity Lab Report

    659 Words  | 3 Pages

    variable that is changed and controlled specifically to test the effect of the independent variable on the dependent variable is the temperature of the hydrogen peroxide and the liver, which affects the froth volume, which is the dependent variable. Constant variables in this experiment was the size of the liver, the amount of hydrogen peroxide and the time the volume was measured. The size of the liver could increase the

  • Catalase Enzyme Lab

    1511 Words  | 7 Pages

    After this optimum is exceeded, the reaction rate sharply decreases to 1 mL/minute during pH 10 and 12. This reduction of activity can be explained through the act of denaturing. This occurs when the enzyme’s tertiary structure collapses, as the hydrogen bonds that form the protein begin to break apart. The function of proteins is heavily reliant on its structure, and once it deforms, it becomes ineffective. In this particular scenario, the active of the enzyme will alter and its once complementary

  • Catalase Activity

    730 Words  | 3 Pages

    like hydrogen peroxide which is a byproduct in many cellular reactions. In this lab, we will use a catalase solution from yeast and determine the effect of substrate concentration on the action of this enzyme. The substrate of the enzyme will be different concentrations of hydrogen peroxide (H2O2). Catalase works by the following mechanism : 2 H2O2 ------------------> 2 H2O+ O2 Hypothesis: The hypothesis for this experiment is that the foam of O2 produced from the reaction between hydrogen peroxide

  • Catalase Test

    920 Words  | 4 Pages

    determines the production of catalase by the microorganisms. Catalase is an enzyme which decomposes hydrogen peroxide to water and oxygen gas thereby, protecting the microorganisms from the lethal effect of hydrogen peroxide which is accumulated as an end product of aerobic carbohydrate metabolism. (Bahrami-Hessari et. al. 2014) The slide containing Micrococcus luteus produced bubbles when 3% hydrogen peroxide was dropped on it. (see Figure 9.3) This indicates that Micrococcus luteus produces catalase.

  • Free Radical Hypoxia

    702 Words  | 3 Pages

    Hypoxia: is the lack of adequate oxygen but hypoxic injury is due to low blood supply, which impacts the heart muscle (Huether & McCance, 2012, p. 63-65 ). After the cessation of blood supply to the heart muscle, the contraction stops due to decline in mitochondrial phosphorylation. This leads to low ATP production, which causes an increase in anaerobic metabolism, producing ATP from glycogen. Even when that is used up, the sodium and potassium pump on the plasma membrane and the sodium-calcium exchange

  • Chalupa Batman

    710 Words  | 3 Pages

    The sun rose on a beautiful fall morning. Chalupa Batman began to tend to his crops, but before he did that, he decided to munch on some bittersweet, chewy candy known as ‘Sour Patch Kids’ for breakfast. As he left his house to tend to his crops, he came across a vile, roadkill-like, smell. He decided to follow the smell to determine the object responsible for the disgusting smell that met him at his front door. He noticed a small black creature with a white stripe down its back sitting in front

  • Robotic Pool Cleaner Research Paper

    1381 Words  | 6 Pages

    For pool owners, there is nothing more exhausting than cleaning the pool itself. Perhaps the common denominator as to why people want to own a pool is that they want to relax and enjoy it with their family and friends. That is the reason why most pool owners prefer to buy robotic pool cleaners. Having fun in the water is only the peak of an iceberg of having a pool. The rest of the iceberg lies on pool maintenance. It would probably take more time cleaning the entire pool than the actual leisure

  • How Does Temperature Affect The Temperature Of Hydrogen Peroxide

    1776 Words  | 8 Pages

    varying temperatures of hydrogen peroxide on the speed of the chemical reaction that occurs by the catalase enzyme within hydrogen peroxide? If the temperature of the hydrogen peroxide is increased to 40° or more the catalase enzymes reaction speed (time it will take for the filter paper to float to the hydrogen peroxides surface in the test tube) will drastically decrease and ultimately the enzyme will become less effective. Independent. The temperature of the hydrogen peroxide. Dependent. Speed (

  • Organic Chemistry Experiment 3: Chromic Acid Oxidation Reaction

    702 Words  | 3 Pages

    Organic chemistry II Experiment 3: chromic acid oxidation reaction Introduction: Camphor is very compact and its molecular structure is symmetrical which gives it the property to change directly from a solid to vapour when heated. Therefore, camphor can easily be purified by sublimation technique. Sublimation is a phase change in which a solid phase passes directly into the vapour without going through an intermediate liquid phase. Solids which have vapour pressure below melting points can be purified

  • How Does Hydrochloric Acid Affect The Amount Of Calcium Carbonate

    2075 Words  | 9 Pages

    Procedure The aim of this experiment was to determine how variations in the amounts of calcium carbonate would affect the amount of carbon dioxide produced within the time frame of one minute. By measuring the amount of carbon dioxide produced, the changes in the rate of reaction could also be determined. By the end of the minute, the more carbon dioxide was produced, the faster the rate of reaction. Throughout the minute, the flask containing hydrochloric acid and calcium carbonate was swirled around

  • Chemical Reaction Essay

    856 Words  | 4 Pages

    If you conduct the catalyzed decomposition of hydrogen peroxide in a closed vessel, you will be able to determine the reaction rate as a function of the pressure increase in the vessel that is caused by the production of oxygen gas. If you vary the initial molar concentration of the H2O2 solution, the rate

  • Essay On Catalase

    762 Words  | 4 Pages

    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 the product water and oxygen. There is less hydrogen peroxide concentration as time is increased due to break down of the substrate. As time is increased more oxygen is given off, more water is formed resulting in a decrease in color intensity.

  • Catalase Reaction Paper

    1275 Words  | 6 Pages

    rate between catalase and H2O2 Figure 1 shows that the optimum temperature for catalase to catalyze hydrogen peroxide is around room temperature (30℃) as it has a very fast reaction rate (5). The overall trend is that temperatures that differ from 30℃, will decrease the reaction rate. Discussion This experiment supported the hypothesis, since catalase was the most effective with hydrogen peroxide when it was in an environment with a temperature of 30℃. It was expected that an extreme temperature

  • Rate Of Reaction Lab Report

    946 Words  | 4 Pages

    AIM: The experiment is to investigate the effect of the change in the concentration of Hydrogen peroxide and sodium thiosulphate on the rate of reaction between potassium iodide (KI), hydrogen peroxide, Sodium thiosulfate (Na2S2O4) under acidic condition. Introduction: The rate of reaction can be defined as the rate at which the reactants are consumed of the rate at which product is formed. It is the ratio of the concertation of reactant used of concentration product to time, it measured in mol

  • Iodine Clock Reaction Lab Report

    1471 Words  | 6 Pages

    iodide, hydrochloric acid, starch, thiosulfate and hydrogen peroxide. The time it takes for the reaction mix to turn blue will be measured with a stopwatch. For the procedure, you will vary the amount of hydrogen peroxide to see how this affects the time the mixed chemicals stay clear before turning blue. The reactions that form the basis for the iodine clock reaction are shown below. Equation 1: H2O2 + 3 I- + 2 H+ → I3- + 2 H2O • H2O2 = Hydrogen peroxide • I- = Iodide ion (from potassium iodide) • H+