• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Order of Reaction between Iodine and Propanone

Extracts from this document...

Introduction

Title: Order of Reaction between Iodine and Propanone Date: 21-2-2011 Objective: To investigate the order of reaction between Iodine and Propanone(CH3COCH3 ) Results Group A Time when reaction mixture was added to NaHCO3 (s) 315 610 886 1220 1500 1808 Volume of Na2S2O3 added (cm3) 19.95 18.70 17.90 16.80 16.10 15.20 Group B Time when reaction mixture was added to NaHCO3 (s) 369 638 858 1175 1510 1793 Volume of Na2S2O3 added (cm3) 19.50 18.70 18.60 17.50 16.90 16.30 Group C Time when reaction mixture was added to NaHCO3 (s) 339 620 912 1245 1516 1869 Volume of Na2S2O3 added (cm3) 20.60 20.00 19.10 18.60 17.70 17.30 Group D Time when reaction mixture was added to NaHCO3 (s) 323 637 922 1209 1496 1791 Volume of Na2S2O3 added (cm3) 22.30 19.35 18.20 17.65 17.15 17.00 Group E Time when reaction mixture was added to NaHCO3 (s) 312 608 933 1205 1507 1791 Volume of Na2S2O3 added (cm3) ...read more.

Middle

(volume of sodium thiosulphate added)(molarity of sodium thiosulphate added)] /(volume of reaction mixture) ?concentration of iodine in the reaction mixture = [(1/2) (volume of sodium thiosulphate added)(molarity of sodium thiosulphate added)] /(volume of reaction mixture) ?The concentration of iodine in the reaction mixture can be expressed in terms of the volume of sodium thiosulphate added. 4. Plot a graph of the time at which the 10cm3 samples of the reaction mixture were added to the sodium hydrogencarbonate solution(x-axis) against the volume of sodium thiosulphate needed to react with the remaining iodine(y-axis). Attached 5. Determine the concentration of sodium thiosulphate from the graph you plotted. From the data of Group A ,at time=0, volume of sodium thiosulphate added should be 20.75cm3. ?concentration of iodine in the reaction mixture = [(1/2) (volume of sodium thiosulphate added)(molarity of sodium thiosulphate added)] /(volume of reaction mixture) ?0.0198= [(1/2) (20.75/1000) (molarity of sodium thiosulphate added)]/(50/1000) ...read more.

Conclusion

25.0 20.0 15.0 10.0 5.0 Gradient of graph/cm3S-1 -2.92 x10-3 -2.12 x10-3 -2.17 x10-3 -2 x10-3 -1.86 x10-3 9. Plot the gradients of graphs above against the initial volume of propanone solution added. A graph showing the gradients of graphs above against the initial volume of propanone solution added. 10. What is the order of the reaction with respect to propanone? The gradient of the graph in (9)is directly proportional to the rate of reaction and volume of propanone solution is also directly proportional to its concentration. Since a straight line is plotted in the graph above, rate of reaction is directly proportional to the concentration of propanone. Thus, the order of the reaction with respect to propanone is 1. Conclusion The order of the reaction with respect to propanone is 1 and the order of the reaction with respect to iodine is 0. Reference http://fyk.hkcampus.net/~fyk-nyw/AL_documents/99ALF6Expt10.doc http://www2.hkedcity.net/sch_files/a/kss/kss-cfm/public_html/content/expts/text/expt/s6expt/s6expta/alp06a.doc http://www.nelsonthornes.com/aqagce/A2%20Sample%20material/Science/Chemistry.pdf http://qcrc.qef.org.hk/proposal/2000/2000-1245/2000-1245-D04-32141.DOC http://hk.knowledge.yahoo.com/question/question?qid=7009021900778 http://hk.knowledge.yahoo.com/question/question?qid=7007021302105 F.6 Chemistry Notes Section V by Ms Sin W L The End ?? ?? ?? ?? F.6 Chemistry/TAS 12/P.1(6) ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Physical Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Physical Chemistry essays

  1. The Determination of rate equation

    dtol Method - 18. Collect all the equipments required to carry out the experiment. 19. Wash all the equipment with water and dry it to avoid contamination. 20. Lay out all the equipment as shown bellow. 21. Label each test tube with the correct concentration level and organise them in ascending order, to prevent contamination.

  2. Investigating the rate of reaction between peroxydisulphate(VI) ions and iodide ions

    Therefore, it can be stated that a lower activation enthalpy barrier for a reaction will make it easier and quicker for bonds to be broken in the initial stage of the reaction. If the colliding particles do not exceed the activation enthalpy barrier, they 'bounce off' each other and remain unchanged.

  1. detremining the rate equation

    Safety: * Throughout the experiment safety goggles should be worn to avoid any contact with eyes. * If Sodium thiosulphate comes in contact with eyes immediately flush the eye with gently running tap water for approximately 5minutes. * If swallowed drink plenty of water, Seek medical attention if a significant quantity is swallowed.

  2. Investigating the Rate of the Reaction between Bromide and Bromate Ions in Acid Solution

    catalyst; when these bonds have formed, the temporary bonds break and the products diffuse away from the catalyst surface. Examples of heterogeneous catalysis include the Haber process, which uses an iron catalyst to produce ammonia, and catalytic converters in cars, which use a platinum catalyst to convert nitrogen oxides to

  1. Investigating how concentration affects rate of reaction

    This gradient can be measured and the activation enthalpy can be worked out. Making Molar Solutions (5) Molar (M) solutions are based on the number of moles of chemical in 1 litre of solution.

  2. Free essay

    Experiment. Is the order of reaction affected if the acid is monoprotic or diprotic?

    However it can also be very slow and time consuming. -Another method that can be used is the time taken for the metal to completely dissolve in an acid solution. This would have to be repeated at various concentrations for the different types of acid.

  1. rates of reaction

    I will be changing this variable and seeing how it affect the time taken for the reaction to take place and therefore how the concentration affects the rate of the reaction. However as only one variable can be changed I will keep one reactant constant whilst changing the other to get a fair set of results.

  2. Individual investigation - Reaction to be studied Rate of reaction between propanone and ...

    More number of particles means more number of collision resulting increase in rate of reaction. Therefore, at high concentration there are more number of particles with minimum required activation energy. ARRHENIUS EQUATION: Arrhenius equation shows how rate constants vary with temperature and activation energy.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work