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Observations & Questions
A. Calculate the initial and final concentrations as needed to complete Tables 1 and 2.
B. Calculate the average reaction time for each reaction by adding the times for the two trials
and dividing by 2.
C. Calculate the reaction rate by taking the inverse of the average reaction time, i.e., 1 divided
by the average reaction time.
1. Use table 1 to determine the reaction order for HCl.
2. Use table 2 to determine the reaction order for Na2S2O3.
Remember, you want to see what happens to the reaction rate when you double the
concentration of one reactant while the second reactant remains unchanged. In Part 1, we varied