write Nernst equation for
$$Cr(s) + 3Fe^{+3}(aq) \rightarrow Cr^{+3}(aq) + 3Fe^{+3}(aq)$$

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Write Nernst equation for the reaction
$$ 2Cr + 3Fe^{2+} \rightarrow 2Cr^{3+} + 3Fe $$

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At 298 K, the standard reduction potentials for the following half-reactions are given. Which acts as an anode with others in an electrochemical cell?

$Z n^{+ 2} (a q) + 2 e^{-} \to Z n (s),$ -0.762 V

$C r^{+ 3} (a q) + 3 e^{-} \to C r (s),$ -0.740 V

$2 H^{+} (a q) + 2 e^{-} \to H_{2} (g),$ 0.000 V

$F e^{+ 3} (a q) + e^{-} \to F e^{2 +} (a q),$ +0.762 V

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The standard reduction potential at

25^{0}

C for the following half reactions are given against each -

Z n^{+ 2} (a q) + 2 e ⇌ Z n (s), E^{0} = - 0.76

volt.

C r^{+ 3} (a q) + 3 e ⇌ C r (s), E^{o} = - 0.74

volt.

2 H^{+} (a q) + 2 e ⇌ H_{2} (g), E^{o} = + 0.0

volt.

F e^{+ 3} (a q) + e ⇌ F e^{+ 2} (a q), E^{o} = + 0.77

volt.

Which is the strongest reducing agent?

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The Bronsted acids in the reversible reaction are:

H C O_{3}^{-} (a q .) + O H^{-} (a q .) ⇌ C O_{3}^{2 -} (a q .) + H_{2} O

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Write nerst equation for 2Cr+3Fe^2+-->2Cr^3+ + 3Fe

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write Nernst equation for$$Cr(s) + 3Fe^{+3}(aq) \rightarrow Cr^{+3}(aq) + 3Fe^{+3}(aq)$$

write Nernst equation for
$$Cr(s) + 3Fe^{+3}(aq) \rightarrow Cr^{+3}(aq) + 3Fe^{+3}(aq)$$