The specific time which can measure to the 100th decimal placeof change in absorbance was obtained from of a second, may be used. going through a serial dilution. Using test tubes and a micropipette, perform a 2 fold serial dilution to reaction rate lab report prepare different concentrations of KI solutions 10cm3 distilled water 10cm3 0. by carrying out the three trials at once. However, if error occurred during thedilution of one concentration, this errorwould have been carried onto the reaction rate lab report nextdilution. It would only bethe spectrophotometer’s table. Make up 50 cm3 of each reaction rate lab report solution. However, if the sodium thiosulphate was placed for too long, then when the hydrochloric acid was poured, the overall reaction was inconsistent with the other results. The R value, which reflects the accuracy of the equation shown inthe figure, is close to 1. CONCLUSION In this experiment, I was able to test the collision theory, the kinetic theory and the reaction rates with high success, however, I looked over the results and realized that there was a huge amount of inconsistency with the reaction times, especially with Peter’s results compared with mine. 0 Table 4: Presented data on rate of reaction for reaction rate lab report different KI concentrations Pg 9 of 10 10. Another source of error, which I believe contributed in the reaction rate lab report inconsistency of the results just as well as contamination, was how long the sodium thiosulphate was placed in the hot or cold water. the absorbance are only occurring by the reaction with KI. Seo Young MyaengCandidate Number: 002213-064UncertaintiesUncertainties for Serial Dilution of KI SolutionUncertainty of a 10cm3 pipette: 0. IB English Extended Essay EE online help tutors example sample 8 reaction rate lab report. Time of change in absorbance: The change It would be possible to improve thisin color caused by the reaction between KI limitation by using a different method toand starch are represented by the change in measure time. Thus, it can be concluded that the KI concentration and the rate ofreaction has a good positive correlation. Calculate the concentration of sodium thiosulfate in the flask at the start of each experiment. See our User Agreement and Privacy Policy. Thus, the overall concentrations ofthe solution would have been influenced. 1M of hydrochloric acid was contaminated with 2M of acid, sodium thiosulphate was accidentally mixed with water, and reaction rate lab report so on. ItThus, it cannot be assured whether the would be that everything would done exactlychanges in absorbance were due to addition the same as other trials, but instead of KIof KI or whether even without KI, the solution, distilled water will be added.
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