Data and Report Submission - Kinetics of Iodine Clock Reaction
Activity closes on Friday 05/07/2021 11:59PM(CDT)
Data And Report Submission - Kinetics Of Iodine Clock Reaction
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(1pt) Kinetics of an Iodine-clock Reaction
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Reaction Times (in s) and Identification of Comparison Pairs
Record times one place past the decimal.
Record times one place past the decimal.
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Group 1: Time (s) |
Group 2: Time (s) |
Group 3: Time (s) |
Group 4: Time (s) |
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A1 |
91.7 |
105.0 |
95.3 |
93.8 |
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A2 |
52.4 |
52.6 |
51.7 |
52.9 |
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A3 |
30.7 |
30.6 |
36.1 |
34.2 |
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A4 |
49.6 |
48.6 |
48.0 |
49.1 |
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A5 |
33.5 |
31.6 |
34.0 |
34.0 |
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A6 |
25.9 |
25.5 |
25.0 |
26.5 |
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A7 |
11.2 |
11.8 |
11.0 |
10.6 |
Identify reaction rates to compare for the determination of each exponent.
Identify reaction rates to compare for the determination of each exponent.
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Numerator (Expt. label) |
Denominator (Expt. label) |
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First comparison pair for exponent a |
A2 |
A1 |
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Second comparison pair for exponent a |
A3 |
A1 |
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Third comparison pair for exponent a |
A3 |
A2 |
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First comparison pair for exponent b |
A4 |
A1 |
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Second comparison pair for exponent b |
A5 |
A1 |
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Third comparison pair for exponent b |
A5 |
A4 |
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First comparison pair for exponent c |
A6 |
A1 |
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Second comparison pair for exponent c |
A7 |
A1 |
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Third comparison pair for exponent c |
A7 |
A6 |
(42pts) Compute Reactant Concentrations and Initial Rates
Record concentrations to three significant figures.
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Record concentrations to three significant figures.
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[S2O32−]0 (M) |
[I−]0 (M) |
[BrO3−]0 (M) |
[H+]0 (M) |
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A1 |
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A2 |
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A3 |
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A4 |
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A5 |
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A6 |
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A7 |
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(0pts)
Optional: Upload your spreadsheet for the concentration calculations.
UPLOAD THE .xlsx FILE.
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Maximum attachments4
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Report average times to one decimal place. Report rates to three significant figures.
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Report average times to one decimal place. Report rates to three significant figures.
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Group 1: Time (s) |
Group 2: Time (s) |
Group 3: Time (s) |
Group 4: Time (s) |
Average Rxn Time (s) |
Initial Rate (M/s) |
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A1 |
91.7 |
105.0 |
95.3 |
93.8 |
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A2 |
52.4 |
52.6 |
51.7 |
52.9 |
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A3 |
30.7 |
30.6 |
36.1 |
34.2 |
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A4 |
49.6 |
48.6 |
48.0 |
49.1 |
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A5 |
33.5 |
31.6 |
34.0 |
34.0 |
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A6 |
25.9 |
25.5 |
25.0 |
26.5 |
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A7 |
11.2 |
11.8 |
11.0 |
10.6 |
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(51pts) Compute Reaction Orders (Exponents)
Report ratios to three significant figures, associated logarithms to three decimal places, and exponents to four significant figures.
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Report ratios to three significant figures, associated logarithms to three decimal places, and exponents to four significant figures.
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Rate Ratio |
Relevant Conc. Ratio |
ln(Rate Ratio) |
ln(Conc. Ratio) |
Exponent |
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A2 / A1 |
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a = |
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A3 / A1 |
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a = |
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A3 / A2 |
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a = |
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A4 / A1 |
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b = |
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A5 / A1 |
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b = |
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A5 / A4 |
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b = |
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A6 / A1 |
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c = |
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A7 / A1 |
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c = |
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A7 / A6 |
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c = |
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Report average exponents to four significant figures.
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List view
Report average exponents to four significant figures.
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Average Value of Exponent |
Rounded to an Integer |
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a |
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b |
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c |
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(19pts) Determine the Rate Law and Rate Constant for the Reaction
(2pts)
Write the rate law for the iodine-clock reaction.
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attachment
(2pts)
Give the units that the rate constant must have based on your rate law.
Saved
→
attachment
Report rate-constant values to three significant figures.
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List view
Report rate-constant values to three significant figures.
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Rate Constant (in your specified units) |
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A1 |
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A2 |
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A3 |
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A4 |
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A5 |
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A6 |
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A7 |
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(0pts)
Optional: Upload your spreadsheet for the rate-constant calculations.
UPLOAD THE .xlsx FILE.
Maximum size for new files20.00MB
Maximum attachments4
cloud_upload
Drag and drop a file or folder here or click
(1pts)
Give the average value of the rate-constant determinations (in your specified units):
This value should have three significant figures.
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