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...
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Question
Solve question 17
![Q10. Calculate the mean activity coefficient + for Ba and SO, ions in a saturated
solution of BaSO4. Assume the ionic strength / of the solution to be 0.40 M.
A) -0.816
B) 19.5
C)-1.29
D) 0.051
E) 0.95
F) 0.75
Q11. Calculate the ionic strength / of 0.1 M solution of ZnCl₂.
A) 0.3 M
B) 0.40 M C) 0.20 M
D) 0.6 M
E) 0.1 M
F) 0.5 M
Q12. When plotting [A], versus time, In[A], versus time, and 1/[A], versus time, the
calculated values of correlation coefficient (R2) are 0.9987, 0.9998, and 0.8974,
respectively. The order of the above reaction is..
A) zero
B) first
C) second
D) third
Q13. In an experiment to determine the rate constant of hydrogen peroxide hydrolysis
reaction, which follows first order, the following data were obtained:
Time, (Sec.)
180
540
360
[H₂O₂), mol/L 2.67-10² 2.07-10
1.60×10
The rate constant of hydrogen peroxide hydrolysis is
A) 1.4×10¹ M's
B) 3.0×10's
D) 1.4-10's
Q14. A plot of a Langmuir adsorption isotherm (C./4. vs 1/Qo) for an adsorption process,
gives a slope of 0.208 and intercept of 250. Calculate the adsorption capacity at
equilibrium corresponding to monolayer coverage (Q.);
E) 0,004
C) 3.0-10¹ M's
A) 0.002
B) 4.8 C) 52 D) 1.2 x 10'
Consider the following phase diagram of a three-component system of A. B and C.
Q15. The plait point occurs approximately at:
A) 40%A, 20%B B) 42%A, 28%B C) 40%A, 40%B
D) 50%A, 50 %B
E) 20%A, 40%B
F) 0%A, 10%B
Q16. What is the mass % of components A, B and C at the point x?
A) 60%A, 10%C
C) 30%A, 20%B
B) 10%A, 90%B
D) 70% A, 20%B
660
1.33-10²
Q17. Adsorption isotherms are models constructed at constant:
A) concentration
B) dose of adsorbent
C) pH
D) temperature
Answer each of the following by True or False.
Q-1 Solution resistance varies as the frequency of the applied voltage changes, then
resistance is normally named as impedance. ( ).
Q-2 Physisorption or physical adsorption is a type of adsorption in which the adsorbate
adheres to the surface only through Van der Waals ( )
Q-3 Michelson Interferometer is considered energy dispersive spectrometer for spectral
analysis. ( )
Q-4 lodine when mixed with starch gives deep red complex. ( )
Q-5 (BET) theory aims to explain the physical adsorption of gas. ( ).
Q-6 The iodination of acetone can be easily investigated because iodine has a deep
green color. (E
Q-7 Activated charcoal or activated carbon is carbon material that has been processed to
contain many large pores creating a very large surface area](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F45429ebe-9b45-44ba-a88d-ed9a3ddfb0c2%2F8d0dc46b-7e3c-46e9-85c6-f08969a224b1%2Fed9h85s_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q10. Calculate the mean activity coefficient + for Ba and SO, ions in a saturated
solution of BaSO4. Assume the ionic strength / of the solution to be 0.40 M.
A) -0.816
B) 19.5
C)-1.29
D) 0.051
E) 0.95
F) 0.75
Q11. Calculate the ionic strength / of 0.1 M solution of ZnCl₂.
A) 0.3 M
B) 0.40 M C) 0.20 M
D) 0.6 M
E) 0.1 M
F) 0.5 M
Q12. When plotting [A], versus time, In[A], versus time, and 1/[A], versus time, the
calculated values of correlation coefficient (R2) are 0.9987, 0.9998, and 0.8974,
respectively. The order of the above reaction is..
A) zero
B) first
C) second
D) third
Q13. In an experiment to determine the rate constant of hydrogen peroxide hydrolysis
reaction, which follows first order, the following data were obtained:
Time, (Sec.)
180
540
360
[H₂O₂), mol/L 2.67-10² 2.07-10
1.60×10
The rate constant of hydrogen peroxide hydrolysis is
A) 1.4×10¹ M's
B) 3.0×10's
D) 1.4-10's
Q14. A plot of a Langmuir adsorption isotherm (C./4. vs 1/Qo) for an adsorption process,
gives a slope of 0.208 and intercept of 250. Calculate the adsorption capacity at
equilibrium corresponding to monolayer coverage (Q.);
E) 0,004
C) 3.0-10¹ M's
A) 0.002
B) 4.8 C) 52 D) 1.2 x 10'
Consider the following phase diagram of a three-component system of A. B and C.
Q15. The plait point occurs approximately at:
A) 40%A, 20%B B) 42%A, 28%B C) 40%A, 40%B
D) 50%A, 50 %B
E) 20%A, 40%B
F) 0%A, 10%B
Q16. What is the mass % of components A, B and C at the point x?
A) 60%A, 10%C
C) 30%A, 20%B
B) 10%A, 90%B
D) 70% A, 20%B
660
1.33-10²
Q17. Adsorption isotherms are models constructed at constant:
A) concentration
B) dose of adsorbent
C) pH
D) temperature
Answer each of the following by True or False.
Q-1 Solution resistance varies as the frequency of the applied voltage changes, then
resistance is normally named as impedance. ( ).
Q-2 Physisorption or physical adsorption is a type of adsorption in which the adsorbate
adheres to the surface only through Van der Waals ( )
Q-3 Michelson Interferometer is considered energy dispersive spectrometer for spectral
analysis. ( )
Q-4 lodine when mixed with starch gives deep red complex. ( )
Q-5 (BET) theory aims to explain the physical adsorption of gas. ( ).
Q-6 The iodination of acetone can be easily investigated because iodine has a deep
green color. (E
Q-7 Activated charcoal or activated carbon is carbon material that has been processed to
contain many large pores creating a very large surface area
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Question 17 as specified.
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