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Physics

Energy Levels

The cell, ...

Question

The cell,
$Z n (s) | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u (s) (E_{c e l l}^{\circ} = + 1.10 V)$
was allowed to be completely discharged at $298 K$ . The relative concentration of $Z n^{2 +}$ to $C u^{2 +} (\frac{[Z n^{2 +}]}{[C u^{2 +}]})$ is________.

9.65 \times 10^{4}

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a n t i l o g (24.08)

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37.3

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10^{37.3}

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Solution

The correct option is B $10^{37.3}$
$E = E^{\circ} - \frac{0.059}{2} log \frac{[Z n^{2 +}]}{[C u^{2 +}]}$
$0 = 1.10 - \frac{0.059}{2} log \frac{[Z n^{2 +}]}{[C u^{2 +}]}$
$log \frac{[Z n^{2 +}]}{[C u^{2 +}]} = 37.3 ∴ \frac{[Z n^{2 +}]}{[C u^{2 +}]} = 10^{37.3}$ .

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Similar questions

Q. The cell,

Z n | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u

, was allowed to be completely discharged at 298 K. The relative concentration of

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C u^{2 +} (\frac{[Z n^{2 +}]}{[C u^{2 +}]})

is :

[E_{c e l l}^{0} = 1.10 V]

Q. The cell,

Z n / {Z n}^{2} (1 M) / / {C u}^{2 +} (1 M) / C u

(

E_{c e l l}^{o} = 1.10 V

) was allowed to be completely discharged at

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The relative concentration of

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is:

The cell, $Z n | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) |$ $C u (E_{c e l l}^{0} = 1.10 V)$ , was allowed to be completely discharged at 298 K. The relative concentration of $Z n^{2 +}$ to $C u^{2 +} (\frac{[Z n^{2 +}]}{[C u^{2 +}]})$ is :

For cell reaction, $Z n + C u^{2 +} \to Z n^{2 +} + C u,$ cell representation is

Q. The standard cell potential for

Z n | Z n^{2 +} | | C u^{2 +} | C u

is 1.10V. When the cell is completely discharged,

l o g [Z n^{2 +}] / [C u^{2 +}]

is closest to:

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The cell,
$Z n (s) | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u (s) (E_{c e l l}^{\circ} = + 1.10 V)$
was allowed to be completely discharged at $298 K$ . The relative concentration of $Z n^{2 +}$ to $C u^{2 +} (\frac{[Z n^{2 +}]}{[C u^{2 +}]})$ is________.

The correct option is B $10^{37.3}$
$E = E^{\circ} - \frac{0.059}{2} log \frac{[Z n^{2 +}]}{[C u^{2 +}]}$
$0 = 1.10 - \frac{0.059}{2} log \frac{[Z n^{2 +}]}{[C u^{2 +}]}$
$log \frac{[Z n^{2 +}]}{[C u^{2 +}]} = 37.3 ∴ \frac{[Z n^{2 +}]}{[C u^{2 +}]} = 10^{37.3}$ .

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The cell,Zn(s)|Zn2+(1 M)||Cu2+(1 M)|Cu(s)(E∘cell=+1.10 V)was allowed to be completely discharged at 298K. The relative concentration of Zn2+ to Cu2+([Zn2+][Cu2+]) is________.

The correct option is B 1037.3E=E∘−0.0592log[Zn2+][Cu2+]0=1.10−0.0592log[Zn2+][Cu2+]log[Zn2+][Cu2+]=37.3∴[Zn2+][Cu2+]=1037.3.

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The cell,
$Z n (s) | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u (s) (E_{c e l l}^{\circ} = + 1.10 V)$
was allowed to be completely discharged at $298 K$ . The relative concentration of $Z n^{2 +}$ to $C u^{2 +} (\frac{[Z n^{2 +}]}{[C u^{2 +}]})$ is________.

The correct option is B $10^{37.3}$
$E = E^{\circ} - \frac{0.059}{2} log \frac{[Z n^{2 +}]}{[C u^{2 +}]}$
$0 = 1.10 - \frac{0.059}{2} log \frac{[Z n^{2 +}]}{[C u^{2 +}]}$
$log \frac{[Z n^{2 +}]}{[C u^{2 +}]} = 37.3 ∴ \frac{[Z n^{2 +}]}{[C u^{2 +}]} = 10^{37.3}$ .