Estimate the moles of Cu(NH3)4* formed, assuming all the original Cu2+ in the porous cup reacted to form the Cu(NH3);2+. Because [Cu?*]cup should be very small this is a reasonable approximation. Calculate the [Cu(NH3)2*] in the porous cup.
Estimate the moles of Cu(NH3)4* formed, assuming all the original Cu2+ in the porous cup reacted to form the Cu(NH3);2+. Because [Cu?*]cup should be very small this is a reasonable approximation. Calculate the [Cu(NH3)2*] in the porous cup.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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 both parts otherwise I will downvote
![voltage before adding NH3: 0V
voltage after adding NH3: 0.34V
[Cuļcup concentration = 0.002 mol/L
[Cu]jar concentration = 0.2 mol/L
T = 298.15 K
answer question b. Calculate the [Cu(NH3)4]
in the cup
The reaction between Cut and NH3 is:
Cu2"(ag) + 4NH3(ag) 2 Cu(NH3)«(ag)
For which an equilibrium constant can be written:
[Cu(NH,),"]
K,
[Cu][NH, J'
From the observed voltage in part II (after adding NH:) and the Nemst Equation:
E = E°.
RT [Cul,
In
%3D
nF[Cu**],
b.
Estimate the moles of Cu(NH3)42+ formed, assuming all the original Cu2+ in the
porous cup reacted to form the Cu(NH3)42+. Because [Cu*cup should be very
small this is a reasonable approximation. Calculate the [Cu(NH3)2*] in the
porous cup.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fea5fbeb9-5c1a-485b-8d0b-3166279bead4%2F9c258e39-1b5e-418c-89d4-3f3437bbe3bd%2Fyg3x7cv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:voltage before adding NH3: 0V
voltage after adding NH3: 0.34V
[Cuļcup concentration = 0.002 mol/L
[Cu]jar concentration = 0.2 mol/L
T = 298.15 K
answer question b. Calculate the [Cu(NH3)4]
in the cup
The reaction between Cut and NH3 is:
Cu2"(ag) + 4NH3(ag) 2 Cu(NH3)«(ag)
For which an equilibrium constant can be written:
[Cu(NH,),"]
K,
[Cu][NH, J'
From the observed voltage in part II (after adding NH:) and the Nemst Equation:
E = E°.
RT [Cul,
In
%3D
nF[Cu**],
b.
Estimate the moles of Cu(NH3)42+ formed, assuming all the original Cu2+ in the
porous cup reacted to form the Cu(NH3)42+. Because [Cu*cup should be very
small this is a reasonable approximation. Calculate the [Cu(NH3)2*] in the
porous cup.
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