1. Why were the reagents equilibrated in water bath before mixing? 2. What is the purpose of starch in the experiment? 3. What will happen to the reaction time and reaction rate if the concentration of one of the reactants is doubled while keeping everything the same?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
Question
100%

Hello, the priority to be answered would be page 1 (1st image). However, I can put part 2 (2nd image) on a new question/post. Just wanted to include that in this post for reference to whoever will answer it. Thank you!

Post lab Questions:
1. Why were the reagents equilibrated in water bath before mixing?
2. What is the purpose of starch in the experiment?
3. What will happen to the reaction time and reaction rate if the concentration of one of
the reactants is doubled while keeping everything the same?
4. Cite possible sources of error in the experiment.
Transcribed Image Text:Post lab Questions: 1. Why were the reagents equilibrated in water bath before mixing? 2. What is the purpose of starch in the experiment? 3. What will happen to the reaction time and reaction rate if the concentration of one of the reactants is doubled while keeping everything the same? 4. Cite possible sources of error in the experiment.
Table 4-1
Volume, mL
Run
4.00 M
0.00120 M I2
1.00 м HC
Starch
dH20
acetone
solution
1
2.00
2.00
2.00
2.00
17.00
2
4.00
2.00
2.00
2.00
15.00
3
2.00
2.00
4.00
2.00
15.00
4
2.00
4.00
2.00
2.00
15.00
5
3.00
3.00
3.00
1.00
15.00
Table 4-2
Time elapsed
(sec)
Run
1
257
2
131
130
4
510
181
1. Determine the concentration of each component (C2) in the final mixture for each
run (refer to Table 4-1) for the total volume (V2) of the mixture, and the initial
concentration (C1) and volume (V1) of each component).
CiV1 = C2V2
%3D
2. Calculate for the reaction rate per run using the concentration of iodine and time
elapsed.
reaction rate = [12] in the final mixture/time elapsed
3. Determine the reaction order with respect to l2. Also determine the reaction order
with respect to C3H,O and the reaction order with respect to HCI. Round off your
answers to the nearest whole number.
4. Calculate for the rate constant for each run using the reaction orders obtained (use
rounded off values of reaction orders).
5. Take the average of the rate constants.
6. Determine the rate law of the reaction.
Transcribed Image Text:Table 4-1 Volume, mL Run 4.00 M 0.00120 M I2 1.00 м HC Starch dH20 acetone solution 1 2.00 2.00 2.00 2.00 17.00 2 4.00 2.00 2.00 2.00 15.00 3 2.00 2.00 4.00 2.00 15.00 4 2.00 4.00 2.00 2.00 15.00 5 3.00 3.00 3.00 1.00 15.00 Table 4-2 Time elapsed (sec) Run 1 257 2 131 130 4 510 181 1. Determine the concentration of each component (C2) in the final mixture for each run (refer to Table 4-1) for the total volume (V2) of the mixture, and the initial concentration (C1) and volume (V1) of each component). CiV1 = C2V2 %3D 2. Calculate for the reaction rate per run using the concentration of iodine and time elapsed. reaction rate = [12] in the final mixture/time elapsed 3. Determine the reaction order with respect to l2. Also determine the reaction order with respect to C3H,O and the reaction order with respect to HCI. Round off your answers to the nearest whole number. 4. Calculate for the rate constant for each run using the reaction orders obtained (use rounded off values of reaction orders). 5. Take the average of the rate constants. 6. Determine the rate law of the reaction.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Sample Preparation in Analytical Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY