Based on these data, what is the value of the formation constant, Kr, of (Cu(NH3)4*? Express the formation constant numerically using one significant figure.
Based on these data, what is the value of the formation constant, Kr, of (Cu(NH3)4*? Express the formation constant numerically using one significant figure.
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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![A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II). [Cu(NHs)4]3+. If a standard
hydrogen electrode is used as the cathode, the cell potential, Ecell, is found to be 0.071 V at 298 K.
12+
Use the standard reduction potentials shown here to answer the
questions.
Reduction half-reaction
E (V)
Part A
Cu (aq) + 2e Cu(s) 0.337
2H+ (aq) + 2e-→H2 (g) 0.000
Based on the cell potential, what is the concentration of Cu- in this solution?
Express your answer to one significant figure and include the appropriate units.
> View Available Hint(s)
Cu*+]- 2x10-14 M
Submit
Previous Anawers
v Correct
Because of the logarithm function, this answer actually has just one significant figure. It is expressed here with three significant figures because it will
be used in the calculation for Part B.
Part B
I Review I Constants I Periodic Table
[Cu?+] = 2x10-14 M
Use the standard reduction potentials shown here to answer the
questions.
Previous Answers
Submit
Reduction half-reaction E (V)
Cu2+ (aq) +2e Cu(s) 0.337
v Correct
Because of the logarithm function, this answer actually has just one significant figure. It is expressed here with three significant figures because it will
be used in the cakculation for Part B.
2H (aq) + 2e H2 (g) 0.000
Part B
Based on these data, what is the value of the formation constant, Kr, of (Cu(NH3)4]+?
Express the formation constant numerically using one significant figure.
> Viow Available Hint(s)
?
K( - 5• 1013
Submit
Previous Answers
x Incorrect; Try Again; 5 attempts remaining
( Retum to Assignment
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Transcribed Image Text:A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II). [Cu(NHs)4]3+. If a standard
hydrogen electrode is used as the cathode, the cell potential, Ecell, is found to be 0.071 V at 298 K.
12+
Use the standard reduction potentials shown here to answer the
questions.
Reduction half-reaction
E (V)
Part A
Cu (aq) + 2e Cu(s) 0.337
2H+ (aq) + 2e-→H2 (g) 0.000
Based on the cell potential, what is the concentration of Cu- in this solution?
Express your answer to one significant figure and include the appropriate units.
> View Available Hint(s)
Cu*+]- 2x10-14 M
Submit
Previous Anawers
v Correct
Because of the logarithm function, this answer actually has just one significant figure. It is expressed here with three significant figures because it will
be used in the calculation for Part B.
Part B
I Review I Constants I Periodic Table
[Cu?+] = 2x10-14 M
Use the standard reduction potentials shown here to answer the
questions.
Previous Answers
Submit
Reduction half-reaction E (V)
Cu2+ (aq) +2e Cu(s) 0.337
v Correct
Because of the logarithm function, this answer actually has just one significant figure. It is expressed here with three significant figures because it will
be used in the cakculation for Part B.
2H (aq) + 2e H2 (g) 0.000
Part B
Based on these data, what is the value of the formation constant, Kr, of (Cu(NH3)4]+?
Express the formation constant numerically using one significant figure.
> Viow Available Hint(s)
?
K( - 5• 1013
Submit
Previous Answers
x Incorrect; Try Again; 5 attempts remaining
( Retum to Assignment
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