When 2.232 g of AX (s) dissolves in 147.5 g of water in a coffee-cup calorimeter the temperature rises from 21.4 °C to 34.8 °C. Calculate the enthalpy change (in kJ/mol) for the solution process. AX (s) → A*(aq) + X- (aq) Assumptions for this calculation: • The specific heat of the solution is the same as that of pure water (4.18 J/gK)
When 2.232 g of AX (s) dissolves in 147.5 g of water in a coffee-cup calorimeter the temperature rises from 21.4 °C to 34.8 °C. Calculate the enthalpy change (in kJ/mol) for the solution process. AX (s) → A*(aq) + X- (aq) Assumptions for this calculation: • The specific heat of the solution is the same as that of pure water (4.18 J/gK)
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
![For the scenario below, the system and surroundings are identified. Select the correct sign of q for both
the system and surroundings as they are defined.
Using an ice pack on a sore ankle
1. System: Ankle negative
2. Surroundings: The ice pack positive
[ Select ]
negative
positive
>](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F02ac992c-59f5-4674-9c6f-05ab0e575bae%2Fd84df274-01c1-4dde-811a-d623627e4e10%2Fulxmfb_processed.png&w=3840&q=75)
Transcribed Image Text:For the scenario below, the system and surroundings are identified. Select the correct sign of q for both
the system and surroundings as they are defined.
Using an ice pack on a sore ankle
1. System: Ankle negative
2. Surroundings: The ice pack positive
[ Select ]
negative
positive
>
![When 2.232 g of AX (s) dissolves in 147.5 g of water in a coffee-cup calorimeter the temperature rises from
21.4 °C to 34.8 °C. Calculate the enthalpy change (in kJ/mol) for the solution process.
AX (s) → A*(aq) + X¯ (aq)
Assumptions for this calculation:
· The specific heat of the solution is the same as that of pure water (4.18 J/gK)
• The density of water = 1.000 g/mL
· The liquid's final volume is not changed by adding the solid
· The calorimeter loses only a negligible quantity of heat.
The formula weight of AX = 59.1097 g/mol. Be sure you include the correct sign for the enthalpy change.
Note: Do not use scientific notation or units in your response. Sig figs will not be graded in this question,
enter your response to four decimal places. Carmen may add or remove digits from your response, your
submission will still be graded correctly if this happens.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F02ac992c-59f5-4674-9c6f-05ab0e575bae%2Fd84df274-01c1-4dde-811a-d623627e4e10%2Fphj9l97_processed.png&w=3840&q=75)
Transcribed Image Text:When 2.232 g of AX (s) dissolves in 147.5 g of water in a coffee-cup calorimeter the temperature rises from
21.4 °C to 34.8 °C. Calculate the enthalpy change (in kJ/mol) for the solution process.
AX (s) → A*(aq) + X¯ (aq)
Assumptions for this calculation:
· The specific heat of the solution is the same as that of pure water (4.18 J/gK)
• The density of water = 1.000 g/mL
· The liquid's final volume is not changed by adding the solid
· The calorimeter loses only a negligible quantity of heat.
The formula weight of AX = 59.1097 g/mol. Be sure you include the correct sign for the enthalpy change.
Note: Do not use scientific notation or units in your response. Sig figs will not be graded in this question,
enter your response to four decimal places. Carmen may add or remove digits from your response, your
submission will still be graded correctly if this happens.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
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 4 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9780078021558/9780078021558_smallCoverImage.gif)
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
![Chemistry: Principles and Reactions](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
![Elementary Principles of Chemical Processes, Bind…](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY