"Reaction rate h2o2" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 16 of 50 - About 500 Essays
  • Better Essays

    rates of reactions

    • 1292 Words
    • 4 Pages

    Once Upon a Time by Gabriel OkaraOnce upon a time‚ son‚they used to laugh with their heartsand laugh with their eyes:but now they only laugh with their teeth‚while their ice-block-cold eyessearch behind my shadow.There was a time indeedthey used to shake hands with their hearts:but that’s gone‚ son.Now they shake hands without heartswhile their left hands searchmy empty pockets.‘Feel at home!’ ‘Come again’:they say‚ and when I comeagain and feelat home‚ once‚ twice‚there will be no thrice-for then

    Premium Gabriel Okara Laughter Poetry

    • 1292 Words
    • 4 Pages
    Better Essays
  • Good Essays

    Rate of reaction

    • 856 Words
    • 4 Pages

    9.5 Tests for halogens and halide Ions Test for halogen Test method Test observations Test chemistry and comments Chlorine gas Cl2 A pungent green gas. (i) Apply damp blue litmus. (Can use red litmus and just see bleaching effect.) (ii) A drop silver nitrate on the end of a glass rod into the gas. (i) litmus turns red and then is bleached white. (ii) White precipitate. (i) Non-metal‚ is acid in aqueous solution and a powerful oxidising agent (ii) It forms a small amount of chloride ion in water

    Premium Chlorine Ammonia Sulfuric acid

    • 856 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Decomposition of H2O2

    • 1401 Words
    • 6 Pages

    Torres January 31‚ 2013 Experiment 2 Kinetics of H2O2 Decomposition Introduction When measuring the rate of a reaction one can measure the rate at which one of the product appears or the rate at which the reactants disappear. The actual rate of a chemical reaction however is dependent on two things; the temperature the actual experiment is performed at‚ and the concentration pertaining to the reactants. The rate of a reaction more often than not depends on the concentration of one or

    Premium Oxygen Chemical reaction

    • 1401 Words
    • 6 Pages
    Good Essays
  • Powerful Essays

    determine the rate law constant for the reaction of hydrogen peroxide and potassium iodide. In this experiment‚ the goal will be to try to measure the rate law constant at low acidity‚ since at low acidity‚ anything less than 1.0 x 10-3M‚ the effect of the hydrogen ion is negligible. To calculate the rate‚ the experiment will have to utilize the rate equation‚ which is expressed as Rate = k[H2O2]a[I-]b. At low acidity‚ the rate of the Hydrogen ion will not change‚ from our equation: H2O2 (aq) + 2I-

    Premium Rate equation Reaction rate Chemical kinetics

    • 3056 Words
    • 13 Pages
    Powerful Essays
  • Better Essays

    PURPOSE: In this experiment we will study the rate of decomposition of hydrogen peroxide to form oxygen according to the net equation: 2H2O2 (aq) 2H2O(l) + O2 by measuring the rate at which oxygen evolved‚ we will investigate how the rate changes with varying initial concentrations of hydrogen peroxide and iodide catalyst. After we will study the affect of changing its concentration the rate oxygen evolution. At the end of experiment we

    Premium Chemical reaction Reaction rate Rate equation

    • 1157 Words
    • 5 Pages
    Better Essays
  • Better Essays

    Lab Report Catalase

    • 1220 Words
    • 5 Pages

    O2 production and reaction velocity increased with increasing catalase concentration‚ however‚ the 33% percent catalase concentration showed a drop of 0.175 mL O2/s compared to the 25% catalase concentration (figure 1.2). The velocity of 25% catalase was 0.275 mL/s‚ 33% was 0.1 mL/s‚ 50% was 0.435 mL/s‚ and 75% catalase was 0.575 mL/s (figure 1.1). The 50% catalase concentration produced the most O2 overall however the 75% catalase concentration had the fastest initial reaction velocity. Experiment

    Premium Enzyme Chemical reaction Chemical kinetics

    • 1220 Words
    • 5 Pages
    Better Essays
  • Good Essays

    effect of temperature on the rate of reaction. To investigate the order of reaction with respect to hydrogen peroxide and ethanoic acid (acetic acid) by the use of an oscillating clock reaction. To determine the activation enthalpy with and without catalytic ions and use this to compare the effectiveness. To investigate the rate equation‚ rate constant and possible mechanism for this reaction. Background research: The Briggs-Rauscher reaction The Briggs-Rauscher reaction also known as the oscillating

    Premium Chemical kinetics Reaction rate Rate equation

    • 11063 Words
    • 74 Pages
    Good Essays
  • Good Essays

    Effect Of Ph On Catalase

    • 573 Words
    • 3 Pages

    This experiment shows the effects of changing the pH level has on Catalase. As predicted‚ the farther away the pH levels got from the optimum pH (7.2)‚ the lower the reaction rate. At a pH of 7.2‚ the foam of the reaction measures 6cm. At a ph of 3 it measures 2.5 cm‚ at a pH of 5 it measures 2.75 cm‚ at ph 9 it measures 2.3 and at 11cm it measures 2cm. pH measures the hydrogen ion concentration of a substrate. By changing the pH of the catalase‚ the enzyme was denatured. Denaturing is the result

    Premium Enzyme Chemical reaction Catalysis

    • 573 Words
    • 3 Pages
    Good Essays
  • Better Essays

    experiment was performed to determine the resultant effect of temperature change on the reaction between the enzyme catalase and hydrogen peroxide. This experiment was performed by measuring and comparing the amount of oxygen bubbles produced and the absorbance of the catalase and hydrogen peroxide solution over time at room temperature‚ 2°C‚ 50°C‚ and 60°C. The overall result of this experiment proved that this reaction works best at room temperature‚ slows down when the temperature is lowered‚ and does

    Premium Chemical reaction Enzyme Chemistry

    • 3527 Words
    • 15 Pages
    Better Essays
  • Better Essays

    The Effect of pH on the Rate of Enzyme Catalysis of Catalase Objectives: The objective of this lab was to develop a protocol to investigate the effect of an environmental variable on the catalytic function of an enzyme. More specifically‚ the objective was to perform an experiment in order to test the effect of pH on the function of the enzyme catalase. Introduction: Enzymes are proteins that act as catalysts for reactions. This simply means that enzymes lower the activation energy required

    Premium Enzyme Chemical reaction PH

    • 2125 Words
    • 9 Pages
    Better Essays
Page 1 13 14 15 16 17 18 19 20 50