Saturday, September 28, 2013

Effect of Temperature on a Reaction: To investigate the effect of temperature in a reaction between potassium manganate and glucose.

Materials:1). 0.02 mol dm-3 Potassium Manganate2). 0.2 mol dm-3 Glucose3). 2 mol dm-3 sulphuric Acid4). 50 cm3 Burette5). 250 cm3 Beaker6). Measuring Cylinder7). Thermometer (-10 to 110 oC)Hypothesis:By giveing glucose to a elimination of KMnO4 and H2SO4, the solution go away turn colourless and it pass on push a specific time for the reaction to complete. By agitate magnitude the temperature, the time it takes (the rate) for the solution to completely change to colourless will be increased. Thus it can be said, that it is being hypothesized that an ?increase in temperature will cause an tint increase in the rate of the reaction?. Method:1). exploitation a standard cylinder, place 50 cm3 of sulphuric battery-acid into a 250 cm3 beaker, add 50 cm3 of water using the same measuring cylinder, and then, from a burette, run in 5 cm3 of the potassium manganate (VII) solution. Heat the resulting mix to about 55 oC, stirring softly while heating. derriere a beaker containin g the hot solution on a ovalbumin tile or a role of paper. 2). Noting the time, pour 20 cm3 of the glucose solution (using a measuring cylinder) into the beaker. rotate and then billhook the temperature. Note the time when the solution turns colourless. 4). set down the results in send back as seen on the act page. 5). Plot a represent of time against temperature (since temperature is the independent variable).
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6). decompose the represent after the set have been plotted. Comment on the line of best forgather and other deductions that can be seen. 7). Plot a graph of concentration of KMnO4 against time and recoup w hether the reaction is zero order, commence! ment order or heartbeat order. Take the concentration as 0.02 mol dm-3. Changing VariablesThe temperature is changed. unremitting VariablesThe amount of glucose solution stay the same. The volumes of Potassium... If you want to get a full essay, order it on our website: OrderCustomPaper.com

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