Explain the effect that each of the following changes would have on the Rate of Reaction in this experiment. Use your experimental results to support your assertions.
Explain the effect that each of the following changes would have on the Rate of Reaction in this experiment. Use your experimental results to support your assertions.
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...
Related questions
Question
4d is the most important pls answer
![### Rate of Reaction Experiment Analysis
#### 4. Analyze the Effect of Various Changes on the Rate of Reaction
In this experiment, we observe how the rate of reaction is affected by several factors. The control rate for this experiment is \(2.43 \times 10^{-7}\). Here are the outcomes of specific changes:
#### (a) Increase in \([KBrO_3]\)
When the concentration of potassium bromate \([KBrO_3]\) is increased, the rate of the reaction is found to be:
\[ 4.01 \times 10^{-7} \]
#### (b) Increase in \([KI]\)
Increasing the concentration of potassium iodide \([KI]\) changes the rate of reaction to:
\[ 4.90 \times 10^{-7} \]
#### (c) Increase in \([HCl]\)
Upon increasing the concentration of hydrochloric acid \([HCl]\) the reaction rate becomes:
\[ 9.25 \times 10^{-7} \]
#### (d) Substitution of Higher Concentration of Starch Solution
If there is any \( S_2O_3^{2-} \) (thiosulfate ion) present, \( I_2 \) will react with it rather than with starch. As such, in each run of the experiment, a sufficient amount of \( Na_2S_2O_3 \) solution will be added to provide a thiosulfate ion concentration of \(10.000020M \). This concentration of starch and \( S_2O_3^{2-} \) does not interfere with any of the reactants, only with the \( I_2 \).
#### (e) Change (Increase or Decrease) in Reaction Mixture Temperature
This part should consider how variations in the temperature of the reaction mixture might affect the rate of reaction. Generally, temperature changes can lead to an increase or decrease in the kinetic energy of the molecules involved, thus influencing the rate at which they collide and react. Specific results from experimental observations for this scenario are not provided in the current description.
#### Conclusion
The observations show significant changes in the rate of reaction with alterations in concentrations of \( KBrO_3 \), \( KI \), and \( HCl \). These experimental results corroborate the theoretical prediction that increasing concentrations of reactants would typically enhance the rate of reaction because of more frequent](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd3a80bdb-dbe3-4058-9ea9-0990b19198fe%2F7ae3e295-01ae-4cfd-ab56-4691b34362bf%2Fmpuz0pa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Rate of Reaction Experiment Analysis
#### 4. Analyze the Effect of Various Changes on the Rate of Reaction
In this experiment, we observe how the rate of reaction is affected by several factors. The control rate for this experiment is \(2.43 \times 10^{-7}\). Here are the outcomes of specific changes:
#### (a) Increase in \([KBrO_3]\)
When the concentration of potassium bromate \([KBrO_3]\) is increased, the rate of the reaction is found to be:
\[ 4.01 \times 10^{-7} \]
#### (b) Increase in \([KI]\)
Increasing the concentration of potassium iodide \([KI]\) changes the rate of reaction to:
\[ 4.90 \times 10^{-7} \]
#### (c) Increase in \([HCl]\)
Upon increasing the concentration of hydrochloric acid \([HCl]\) the reaction rate becomes:
\[ 9.25 \times 10^{-7} \]
#### (d) Substitution of Higher Concentration of Starch Solution
If there is any \( S_2O_3^{2-} \) (thiosulfate ion) present, \( I_2 \) will react with it rather than with starch. As such, in each run of the experiment, a sufficient amount of \( Na_2S_2O_3 \) solution will be added to provide a thiosulfate ion concentration of \(10.000020M \). This concentration of starch and \( S_2O_3^{2-} \) does not interfere with any of the reactants, only with the \( I_2 \).
#### (e) Change (Increase or Decrease) in Reaction Mixture Temperature
This part should consider how variations in the temperature of the reaction mixture might affect the rate of reaction. Generally, temperature changes can lead to an increase or decrease in the kinetic energy of the molecules involved, thus influencing the rate at which they collide and react. Specific results from experimental observations for this scenario are not provided in the current description.
#### Conclusion
The observations show significant changes in the rate of reaction with alterations in concentrations of \( KBrO_3 \), \( KI \), and \( HCl \). These experimental results corroborate the theoretical prediction that increasing concentrations of reactants would typically enhance the rate of reaction because of more frequent
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Knowledge Booster
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.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY