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A Zn | Zn²⁺ | Cu²⁺ | Cu cell is left to run until its… | StemPy Lab
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A Zn | Zn²⁺ | Cu²⁺ | Cu cell is left to run until its emf drops to zero. Which statement is true then?
Chemistry
Medium
High School (11–12)
Electrochemistry › Conductance, Electrolysis and Batteries
NEET
AP
A-Level
IB
Created by
StemPy Lab
A Zn |
Zn
2
+
\text{Zn}^{2+}
Zn
2
+
∥
\|
∥
Cu
2
+
\text{Cu}^{2+}
Cu
2
+
| Cu cell is left to run until its emf drops to zero. Which statement is true then?
The standard emf has fallen to zero
The zinc electrode has become the cathode
The concentration of
Cu
2
+
\text{Cu}^{2+}
Cu
2
+
is exactly
1
mol/L
1\ \text{mol/L}
1
mol/L
The reaction quotient has become equal to the equilibrium constant
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← The standard emf of a cell comes out negative for the reaction as it is written. What is true of that reaction under standard conditions?
A conductivity cell has electrodes of area 3.5 cm² placed 2.8 cm apart. A solution in it has a resistance of 560 Ω. What is the conductivity of the solution? →
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