Iodine clock reaction

Sort By:
Decent Essays
Good Essays
Better Essays
Amazing Essays
Best Essays
    Page 1 of 50 - About 500 Essays
  • Good Essays

    Iodine clock reactions also known as Landolt Clock Reactions are one of many types of reactions in Chemistry. Clock reactions are an appealing way to show different type of chemicals having a reaction towards each other. This type of chemical reaction shows the demonstration of chemical kinetics. Iodine clock reactions were discovered by Swiss chemist Hans Heinrich Landolt in 1886. The procedure of conducting an iodine clock reaction consist of two colourless chemicals being mixed together. After a short period of time the two colourless chemicals will react with each other causing there to be a colour change in the solution, knows as a clock reaction, considering that over time the chemicals will react. The usual colour of the change that…

    • 1223 Words
    • 5 Pages
    Good Essays
  • Better Essays

    Usually, this state results when the forward reaction proceeds at the same rate as the reverse reaction. Chemical reactions vary greatly in the speed at which they occur. Some are essentially instantaneous, while others may take a very long time to reach equilibrium. The reaction is presented by The time in the reaction when the mixture remains colourless is the clock period. This will depend upon the initial concentrations of the sodium bisulphite ions (NaHSO3) and the potassium iodate ions…

    • 1354 Words
    • 5 Pages
    Better Essays
  • Amazing Essays

    Iodine Clock Reaction

    • 2043 Words
    • 9 Pages

    mathematics of systems of differential equations (Thermodynamics and Kinetics). This means that the rate of any chemical reaction is determined by the type, and amount, of reactants present. Note the rate of a reaction is how fast it occurs. Furthermore, such rate equations can either be distinctively linear or non-linear when graphed. Non-linear equations are supposedly more complex as they generally react to small changes within its parameters (Thermodynamics and Kinetics). This could include…

    • 2043 Words
    • 9 Pages
    Amazing Essays
  • Good Essays

    which is related to the reaction between acidified potassium iodide and hydrogen peroxide. Before calculating the rate of this reaction, the reaction will be carried out 3 times and values will be got. A special timer will be used to measure the time. It could be expected and argued that each time will be able differ from the others in each reaction and it can be explained by changing the quantity of hydrogen peroxide. At the final, it will be obviously observed that there will be some…

    • 992 Words
    • 4 Pages
    Good Essays
  • Decent Essays

    CHML 1046 General Chemistry 2 Laboratory Experiment “The Rate Law of an Iodine Clock Reaction” Objectives: To apply method of initial rates for investigation of influence of concentrations of reactants on the rate of the reaction. Determine the rate law of a particular reaction experimentally. Observe the effect of catalyst on the reaction rate. Examine the influence of temperature on the rate of this reaction. Calculate activation energy for the reaction from rate constants at two…

    • 1665 Words
    • 7 Pages
    Decent Essays
  • Good Essays

    Introduction The purpose of this lab is to test different solutions for macromolecules as well as to identify an unknown solution. This experiment used three tests to identify which macromolecules (carbohydrates and proteins) were present in different sample solutions. The tests were the iodine test, Benedict’s test, and the biuret test. To begin, the iodine test was used to identify which solutions contained glycogen or starch. If the solution tested negative, it stayed the yellow colour of the…

    • 1203 Words
    • 5 Pages
    Good Essays
  • Good Essays

    and its known density was only 0.2 g/mL away. After calculating the density of WC, the results had a 0% error. Also, comparing the physical characteristics of WC to oak, they were relatively very similar. Lastly, through the acetic acid test, and the iodine test, the results matched up to corn starch 's properties. When the iodine test was done on PA, it matched up to the results of corn starch, turning purple and clumping together. China will receive LB, after its characteristics matched up…

    • 899 Words
    • 4 Pages
    Good Essays
  • Better Essays

    and decompose highly reactive, thus unstable, interhalogens that seemingly violate the octet rule. Synthesis reaction: KClO3 + I2 + 6HCl → KCl + 2ICl3 + 3H2O Decomposition reaction: I2Cl6 → 2ICl + 2Cl2 The halogens used within this experiment consisted of Iodine and Chlorine to produce an oxidizing reagent Iodine trichloride. Due to electron orbitals and their interactions…

    • 1437 Words
    • 6 Pages
    Better Essays
  • Amazing Essays

    starch solution into another 4 test tubes and added 2mL of buffer 7.0 to each test tube 7. I placed the two sets of test tubes in a water bath (approximately 37 C) for 5 minutes. 8. I put some IKI in a spotted white tile and noted the time 9. I poured the contents of one tube containing starch into the tube with highest concentration of saliva. 10. I swirled it to mix and returned it quickly to the water bath. 11. I tested the mixed solution for starch by removing a small drop of the reaction…

    • 768 Words
    • 4 Pages
    Amazing Essays
  • Good Essays

    Iodometry Lab Report

    • 1421 Words
    • 6 Pages

    This will dissolve and oxidize copper into Cu2+. The solution was then heated to remove the brown NOx fume. This is necessary since NOx acts as an oxidizing agent and will oxidize I in the redox reaction to be observed. When all NOx fume is removed, H2SO4 was added and the solution was heated until white SO3 fumes appear. The addition of H2SO4 will drives off all nitrogen oxide gas that can interfere with the redox reactions. The SO3 vapor that is observed is an indication that all NOx has…

    • 1421 Words
    • 6 Pages
    Good Essays
  • Previous
    Page 1 2 3 4 5 6 7 8 9 50