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Standard XII

Chemistry

SHE

The standard ...

Question

The standard cell potential for $Z n | Z n^{2 +} | | C u^{2 +} | C u i s 1.10 V .$ When the cell is completely discharged, $l o g \frac{[Z n^{2 +}]}{[C u^{2 +}]}$ is closest to

37.3

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Solution

The correct option is A
37.3

$Z n | Z n^{2 +} | | C u^{2 +} | C u; E_{C e l l}^{\circ} = 1.1 V 0 = E_{C e l l}^{\circ} - \frac{0.0591}{2} l o g \frac{[Z n^{2 +}]}{[C u^{2 +}]}; - 1.1 = - \frac{0.0591}{2} l o g_{10} \frac{[Z n^{2 +}]}{[C u^{2 +}]} l o g \frac{[Z n^{2 +}]}{[C u^{2 +}]} = \frac{2.2}{0.0591} = 37.3$

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Similar questions

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:

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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is :

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

Q. 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 +}

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

is________.

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 :

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The standard cell potential for Zn|Zn2+||Cu2+|Cu is 1.10V. When the cell is completely discharged, log[Zn2+][Cu2+] is closest to

The correct option is A 37.3 Zn|Zn2+||Cu2+|Cu; E∘Cell=1.1V0=E∘Cell−0.05912log[Zn2+][Cu2+]; −1.1=−0.05912log10[Zn2+][Cu2+]log[Zn2+][Cu2+]=2.20.0591=37.3

The standard cell potential for $Z n | Z n^{2 +} | | C u^{2 +} | C u i s 1.10 V .$ When the cell is completely discharged, $l o g \frac{[Z n^{2 +}]}{[C u^{2 +}]}$ is closest to