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Use the dilution equation to calculate the starting concentration of each reactant for each trial. (Hint: You know the concentration and volume of each reactant added, M1 and V1. For every trial, the total volume, V2, is 1.9 mL.)

Use the dilution equation to calculate the starting concentration of each reactant for each trial. (Hint: You know the concentration and volume of each reactant added, M1 and V1. For every trial, the total volume, V2, is 1.9 mL.)

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
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
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Problem 85IL: The color change accompanying the reaction of phenolphthalein with strong base is illustrated below....
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For parts 1 and 2, Use the dilution equation to calculate the starting concentration of each
reactant for each trial. (Hint: You know the concentration and volume of each reactant added,
M1 and V1. For every trial, the total volume, V2, is 1.9 mL.) 

Kinetics Data

Part 1   Part 2  
Reaction Time (s)

 

Reaction

 

 Time (s)
1 37 5 44
2 78 6 82
3 152 7 170
4 306 8 338

0.2%  starch,    0.012M   Na2S2O3,    0.20M  KI,    0.20M   KNO3,    0.20M  (NH4)2S2O8,    0.20M (NH4)2SO4,    0.0020M  Cu(NO3)2

Sample Data Kinetics Experiment Part 1 Part 2 Reaction Time (s) Reaction Time (s) 1 37 44 2 78 82 3 152 7 170 4 306 8. 338 Add the following volumes of the indicated reagents to test tubes labeled 1A, 2A, 3A, and 4A (All volumes are in uL). Reaction Test Tube 1A 0.2 % Starch 0.012 M 0.20 M 0.20 M NazS2O3 200 uL 200 uL 200 µL 200 µL KI KNO, 1 2 100 pL 100 µL 100 µL 100 pL 800 pL 400 µL 200 µL 100 µL 400 uL 600 µL 700 pL 2A 3 ЗА 4 4A Add the following volumes of the indicated reagents to test tubes labeled 1B, 2B, 3B, and 4B (All volumes are in uL). Reaction Test Tube 0.20 M (NH)2S2Os (NH.)2SO4 400 µL 400 µL 400 pL 400 µL 0.20 M 400 uL 400 µL 400 µL 400 µL 1 1B 2B 3 3B 4B 3. Add the following volumes of the indicated reagents to test tubes labeled 5A, 6A, 7A, and 8A (All volumes are in mL). Reaction Test 0.2 % 0.012 M Na:S;O 200 ul 200 uL 200 uL 200 µL 0.20 M 0.20 M Starch 100 µL 100 pL 100 pL 100 uL KNO, 400 pL 400 ul 400 pL 400 uL Tube 5A KI 5 400 pL 6A 7A 400 µL 400 µL 400 uL 7 8 8A 0.20 M (NH);S;O, (NH.)½SO4 800 µL 400 pL 200 uL 100 pL Reaction Test 0.20 M Tube 5 5B 6B 7B 8B 400 pL |600 uL 700 pl 6 7 8
Transcribed Image Text:Sample Data Kinetics Experiment Part 1 Part 2 Reaction Time (s) Reaction Time (s) 1 37 44 2 78 82 3 152 7 170 4 306 8. 338 Add the following volumes of the indicated reagents to test tubes labeled 1A, 2A, 3A, and 4A (All volumes are in uL). Reaction Test Tube 1A 0.2 % Starch 0.012 M 0.20 M 0.20 M NazS2O3 200 uL 200 uL 200 µL 200 µL KI KNO, 1 2 100 pL 100 µL 100 µL 100 pL 800 pL 400 µL 200 µL 100 µL 400 uL 600 µL 700 pL 2A 3 ЗА 4 4A Add the following volumes of the indicated reagents to test tubes labeled 1B, 2B, 3B, and 4B (All volumes are in uL). Reaction Test Tube 0.20 M (NH)2S2Os (NH.)2SO4 400 µL 400 µL 400 pL 400 µL 0.20 M 400 uL 400 µL 400 µL 400 µL 1 1B 2B 3 3B 4B 3. Add the following volumes of the indicated reagents to test tubes labeled 5A, 6A, 7A, and 8A (All volumes are in mL). Reaction Test 0.2 % 0.012 M Na:S;O 200 ul 200 uL 200 uL 200 µL 0.20 M 0.20 M Starch 100 µL 100 pL 100 pL 100 uL KNO, 400 pL 400 ul 400 pL 400 uL Tube 5A KI 5 400 pL 6A 7A 400 µL 400 µL 400 uL 7 8 8A 0.20 M (NH);S;O, (NH.)½SO4 800 µL 400 pL 200 uL 100 pL Reaction Test 0.20 M Tube 5 5B 6B 7B 8B 400 pL |600 uL 700 pl 6 7 8
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