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Portage learning CHEM 104 Problem Set QUESTIONS AND ANSWERS 2024.
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Portage learning CHEM 104 Problem Set QUESTIONS AND ANSWERS 2024. Portage learning CHEM 104 Problem Set QUESTIONS AND ANSWERS 2024. Portage learning CHEM 104 Problem Set QUESTIONS AND ANSWERS 2024.

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  • August 8, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • portage learning chem 104 problem set questions an
  • portage learning chem 104 problem set questions
  • portage learning chem 104 problem set questions an
  • portage learning chem 104 problem set questions an

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Portage learning CHEM 104 Problem Set
QUESTIONS AND ANSWERS 2024
1. Based on what we know of electrochemical processes, which of the
following metallic elements will most likely exist in their ionic form at
equilibrium?
(hint: use the standard reduction potential table): Al, Fe, Mg, Ni

2. You are given two glasses of water that have different temperatures. The
temperature of the first glass is at 298 K, while the second glass has a
temperature of 303 K. It has been determined that the Kw value for the second
glass of water is 1.47 x 10^-4.

T/F: The room temperature glass of water has a higher pH, and is more basic
than the other glass of water.: False

3. You are given two glasses of water that have different temperatures. The
temperature of the first glass is at 298 K, while the second glass has a
temperature of 303 K. It has been determined that the Kw value for the second
glass of water is 1.47 x 10^-4.

T/F: The pH of the room temperature glass is higher, but both glasses have
the same acidity.: True

4. You are given two glasses of water that have different temperatures. The
temperature of the first glass is at 298 K, while the second glass has a
temperature of 303 K. It has been determined that the Kw value for the second
glass of water is 1.47 x 10^-4.

T/F: The room temperature water has a lower pH, so is more acidic.: False 5.
You are given two glasses of water that have different temperatures. The
temperature of the first glass is at 298 K, while the second glass has a
temperature of 303 K. It has been determined that the Kw value for the second
glass of water is 1.47 x 10^-4.



,T/F: Both glasses of water are neutral, so both will have a pH of 7.00.: False 6.
You are given two glasses of water that have different temperatures. The
temperature of the first glass is at 298 K, while the second glass has a
temperature of 303 K. It has been determined that the Kw value for the second
glass of water is 1.47 x 10^-4.

T/F: The warmer glass of water has a lower pH, and is more acidic than
the other glass of water.: False 7. Acid Base: Theory Checkbox Consider
the weak acid HCN.
T/F: The lower the concentration of a solution of HCN, the higher the pH of
the solution: True
8. Acid Base: Theory Checkbox

Consider the weak acid HCN.

T/F: The pOH of a 1.0 M solution of HCN will be greater than 7.0: True
9. Acid Base: Theory Checkbox

Consider the weak acid HCN.

T/F: The conjugate base, CN- , will be a stronger base than water: True
10. Acid Base: Theory Checkbox

Consider the weak acid HCN.

T/F: The more resonance contributors a conjugate base can have, the lower
the Ka for the corresponding conjugate acid: False
11. Acid Base: Theory Checkbox

Consider the weak acid HCN.

T/F: The stronger CN- is as a base, the stronger HCN is as an acid: False
12. Acid Base: Theory Checkbox

Consider the weak acid HCN.




, T/F: The Kb for CN- will be greater than 1.0: False
13. Acid Base: Theory Checkbox

Consider the weak acid HCN.

T/F: If more HCN is added to solution, the pH will increase: False
14. Acid Base: Theory Checkbox

Consider the weak acid HCN.

T/F: The value of Ka for HCN will be less than 1.0: True
15. Acid Base: Theory Checkbox

Consider the weak acid HCN.

T/F: HCN is a better acid than water: True
16. Acid Base: Ranking Acids

Solution #1
(a) HF
(b) CH3CH2NH2
(c) KNO3
(d) NaClO
(e) C5H5NHBr
(f) CH3NH3Cl
(g) NH3
(h) KCN: HF
17. Acid Base: Ranking Acids

Solution #2
(a) HF
(b) CH3CH2NH2
(c) KNO3
(d) NaClO
(e) C5H5NHBr
(f) CH3NH3Cl

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