Calculate the reaction rate [I2] M/s for run 1 (addition of beaker 1 to flask 1) if it takes 65 seconds given the following data:

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter14: Chemical Kinetics: The Rates Of Chemical Reactions
Section: Chapter Questions
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Calculate the reaction rate [I2] M/s for run 1 (addition of beaker 1 to flask 1) if it takes 65 seconds given the following data:

Solutions Flask 1 Flask 2 Flask 3
0.055 M KI 25.0 mL 25.0 mL 12.5 mL
1% starch 5.00mL 5.00mL 5.00mL
0.449 M Na2S2O3 5.50 mL 5.50 mL 5.50 mL
1.04 M H2SO4 5.00 mL 5.00mL 5.00mL
0.065 M NaCl 0 0 10.0 mL

and

Solutions Beaker 1 Beaker 2 Beaker 3
0.049 M H2O2 25.0 mL 12.5 mL 25.0 mL
deioinized water 0 12.5  mL 0

You will need to calculate the [I2] from [S2O32-] using I2(aq) + 2 S2O32-(aq)  →   2I-(aq) + S4O62-(aq)

Then calculate the rate of the reaction [I2]M/ time(s)

Give your answer as the coefficient (to 2 decimal places) only for your answer written in scientific notation.  For example if your answer is 0.000294 = 2.94 x 10-4 you would input your answer as 2.94.

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