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Investigating The Rate Of Reaction Between Peroxydisulphate (Vi) Ions And Iodide Ions

Essay specific features

 

Issue:

Science

 

Written by:

Steve B

 

Date added:

November 4, 2016

 

Level:

 

Grade:

A

 

No of pages / words:

8 / 1964

 

Was viewed:

4647 times

 

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Essay content:

Finding the order for each reactant 4. Finding the rate-determining step. 5. Proposing a mechanism for the reaction. 6. Using Arrhenius' equation to find the activation enthalpy. Background The basic reaction for this can be illustrated with the following equation: 3I-(aq) + H2O2(aq) + 2H+(aq) > I3-(aq) + 2H2O(aq) (1) The half equations for this reaction can be written as follows: 3I- ? I3- + 2e- H2O2 + 2H+ + 2e- ? 2H2O This reaction demonstrates that iodide ions are oxidised by hydrogen peroxide to tri-iodide ions...
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Thus, the iodine that is formed in reaction (1) is immediately transformed into iodide ion and we do not see the blue-black colour of the starch-iodide complex until all of the thiosulphate ion has reacted with I 2(aq) and is exhausted. I3- (aq) + starch ? Starch-I5- complex + I-(aq) Once the thiosulphate ion has been exhausted, the tri-iodide ion can react with the starch, forming the Starch-I5- complex, giving the blue-black colour...
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General issues of this essay:
Investigating The Rate Of Reaction Between Peroxydisulphate (Vi) Ions And Iodide Ions Investigating the Kinetics of the reaction between Iodide ions and Peroxodisulphate (VI) ions (entire plan) Investigation into the kinetics of the reaction between peroxodisulphate(VI) ions and iodide ions An Investigation on the rate of reaction of the enzyme Catalase on the substrate Hydrogen peroxide. Did The Actual Amount Of Reactants And The Catalyst In The Decomposition Of Hydrogen Peroxide With A Manganese (Iv) Oxide Catalyst Reaction Match Up To The Theoretical Stoichiometric Amounts According To The Balanced Equ Concentration Affects The Rate Of Oxygen Production When Raw Liver (Catalyse), And Hydrogen Peroxide Is Mixed Investigating the factors affecting the rate of a chemical reaction. Investigating The Effect Of Enzyme Concentration On The Rate Of An Enzyme-Catalysed Reaction. Hydrogen Peroxide Kinetics Of Hydrogen Peroxide Concentration Of Hydrogen Peroxide enzemes potato hydrogen peroxide Effect of MnO2 on the decomposition of Hydrogen Peroxide to See What Factors Affect The Decomposition Of Hydrogen Peroxide By The Effects of Hydrogen Peroxide on the Fertilization of Sea Urchins Arbacia punctulata
 

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