Case # 2: Rate Law Determination Using Methods Of Initial Rates Lab

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Kevin Malakov 6/7/15 CHM 3001 Professor Charnick Lab #2: Rate Law Determination Using Methods of Initial Rates (Kinetics Part 1) Abstract: In this experiment I performed the Rate Law Determination Using Methods of Initial Rates lab. The purpose of the experiment was to determine the rate law of a reaction. Our reaction equation of interest was S2O82- (aq)+ 3I- (aq)→ 2SO42- (aq)+ I3- (aq). Part of the rate law is the reaction orders, which are the coefficients of the reactants within the rate law. The way I find these values is by having two separate flasks, A and B that vary in components. In table one KI is constant for the first four determinations, which will help me determine the reaction order of S2O82-. While in table two (NH4)2S2O8 is…show more content…
I made flask B and Catilyn made flask A. From there Catilyn prepared the Flask A test tubes and I prepared the Flask B test tubes according to the amount written on the table. For the first four determinants Catilyn was stirring and I was measuring the time. We started the timer when the two solutions first touched. After we completed and recorded the times of determinations 1-4 we moved on to preparing the test tubes for table 2’s determinations. Again I was responsible for the Flask B test tubes, Catilyn made Flask A test tubes. This time the four test tubes in determination 5-8 from flask A were varied while flask B was constant. For these determinations I was responsible to stir while Catilyn was the one who timed the reaction. Since the solutions are colorless the way you determined when the reaction ends
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