The standard reduction potential for the half cell- NO-3 aq - 2H- - - NO2g H2O is 0-78 VThe reduction potential in 8 M H- is- in VAssume all the other species to be at unit concentration- write your answer to nearest integer

The standard reduction #160;potentail for the half cell NO^⊖_3 (aq) + 2H^⊕ (aq) + e^ → NO_2(g) + H_2O(g) #160;is 0.78 V.By Nernst equation for the abo ...

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Standard XII

Chemistry

Nernst Equation

The standard ...

Question

The standard reduction potential for the half cell:
$N O_{3}^{⊖} (a q) + 2 H^{\oplus} + \to N O_{2} (g) H_{2} O$ is 0.78 V
The reduction potential in 8 M $H^{\oplus}$ is: (in V)
Assume all the other species to be at unit concentration. ( write your answer to nearest integer)

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Solution

The standard reduction potentail for the half cell
$N O_{3}^{⊖} (a q) + 2 H^{\oplus} (a q) + e^{-} \to N O_{2} (g) + H_{2} O (g)$ is 0.78 V.
By Nernst equation for the above half cell reaction.
(a) $E_{c e l l} = E_{c e l l}^{⊖} - \frac{0.0591}{n} l o g \frac{[N O_{2}] [H_{2}]}{[N O_{3}^{⊖}] [H^{\oplus}]^{2}}$
= $0.78 - \frac{0.591}{1} l o g \frac{1 \times 1}{1 \times (8)^{2}}$
= 0.78 + 0.059 log 64
= $0.887 V .$

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Similar questions

The standard reduction potential for the half cell :

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The standard reduction potential for the half cell:

$N O {_{3}}^{-} (a q .) + 2 H^{+} (a q .) + e^{-} \to N O_{2} (g) + H_{2} O$ is 0.78 V.

Calculate the reduction potential in $8 M H^{+}$ .

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The standard reduction potential for the half cell:NO⊖3(aq)+2H⊕+→NO2(g)H2O is 0.78 VThe reduction potential in 8 M H⊕ is: (in V)Assume all the other species to be at unit concentration. ( write your answer to nearest integer)

The standard reduction potentail for the half cellNO⊖3(aq)+2H⊕(aq)+e−→NO2(g)+H2O(g) is 0.78 V.By Nernst equation for the above half cell reaction.(a) Ecell=E⊖cell−0.0591nlog[NO2][H2][NO⊖3][H⊕]2= 0.78−0.5911log1×11×(8)2= 0.78 + 0.059 log 64=0.887V.

The standard reduction potential for the half cell:
$N O_{3}^{⊖} (a q) + 2 H^{\oplus} + \to N O_{2} (g) H_{2} O$ is 0.78 V
The reduction potential in 8 M $H^{\oplus}$ is: (in V)
Assume all the other species to be at unit concentration. ( write your answer to nearest integer)