1046L. Florida International University Department of Chemistry and Biochemistry

Question

1046L. Florida International University Department of Chemistry and Biochemistry post-Lab Questions following questions The experiment stated that, because you are the essentially to completion, you are measuring the average rate of of reaction versus an instantaneous rate that the Why do you think it is important to make this distinction? How do you hypothesize rate of a reaction would change 2. what are other ways in which scientists can measure rates of reactions? Make sure to cite any outside sources used to answer this question. Why is it important that all the experiments performed were the same total volume? what is the difference between the reaction rate and the constant? 5. Why was it important to perform multiple trials of each experiment? Does this make your data accurate or precise? Justify your answer. 6 How would the addition of a catalyst change the results obtained? Specifically, how does a catalyst change the rate of a chemical reaction? Make sure to cite any sources used to answer this question. 7. What are some sources of error that could have occur in this experiment? How do these errors affect your results? How can you prevent these errors in the future? References Approach, 1st ed Pearson 1. Tro, Nivaldo J. Chemical Kinetics. In Chemistry A Molecular Education, Inc.: Upper Saddle River, 2008. Vanessa Thompson Revised: Summer 2012

Explanation / Answer

nstantaneous rate is more preffered than average rate as instantaneous rate give rate of reaction at that particular time. But average rate gives rate of reaction in a time interval.

As reaction progresses the concentration of reactants decreases and products increases.But the rate with respect to reatants and produts continuously decreases as time progresses. Because rate of reaction is inversely praportional to time.

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