pr 3 T. 3. What is the pH in the hydrogen compartment of the cell when the voltage is maintained at 2.80 V? Assume all other elements are at standard values and the temperature is 25°C. Ca (s) + 2H† (aq) → Ca²* (aq) + H2 (g) E° = 2.87 V %3D A. 2.36 B. 4.86 Ecell = Ecen 0.0592 %3D C. 1.18 1o9 Q D. 1.93 0.0592 2.8 V = 2.87 - 2 1og Q 0.211 V=0- 2 iogQ logQ= -o-211() -7.3 %3D - 7.13 Q=10 7.4x 10-8 CH* Caa,x M)]" = x*=74x10 [H* (aq, IM)]² (1.00j* =27A10-4 pH = -10g(27x 0) = 3,57
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I'm trying to do #3 but keep getting it wrong. Please any help is appreciated.
![pr 3
T.
3. What is the pH in the hydrogen compartment of the cell when the voltage is maintained at
2.80 V? Assume all other elements are at standard values and the temperature is 25°C.
Ca (s) + 2H† (aq) → Ca²* (aq) + H2 (g)
E° = 2.87 V
%3D
A. 2.36
B. 4.86
Ecell = Ecen
0.0592
%3D
C. 1.18
1o9 Q
D. 1.93
0.0592
2.8 V = 2.87 -
2 1og Q
0.211 V=0-
2 iogQ
logQ= -o-211() -7.3
%3D
- 7.13
Q=10 7.4x 10-8
CH* Caa,x M)]"
= x*=74x10
[H* (aq, IM)]²
(1.00j*
=27A10-4
pH = -10g(27x 0) = 3,57](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7c771dc0-f394-4f43-9838-102aaad451c3%2Fedd1238b-c42f-4bb6-8890-a9ffda497940%2Ft821f8.jpeg&w=3840&q=75)
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