What is the number of moles of electrons pass | vedclass

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Question

(A) The total charge $Q$ passed is given by the formula $Q = I 	imes t$.Given $I = 5 \ A$ and $t = 20 \ minutes = 20 	imes 60 \ s = 1200 \ s$.$Q = 5

Vedclass · Accepted Answer

$6.25 	imes 10^{-2}$

Vedclass · Answer

(A) The total charge $Q$ passed is given by the formula $Q = I 	imes t$.Given $I = 5 \ A$ and $t = 20 \ minutes = 20 	imes 60 \ s = 1200 \ s$.$Q = 5 	imes 1200 = 6000 \ C$.Since the charge of $1 \ mole$ of electrons is $F = 96500 \ C/mol$,the number of moles of electrons is $n = \frac{Q}{F}$.$n = \frac{6000}{96500} \approx 0.06217 \ mol \approx 6.22 	imes 10^{-2} \ mol$.Rounding to the nearest provided option,the value is $6.25 	imes 10^{-2}$.

What is the number of moles of electrons passed when a current of $5 \ A$ is passed through a solution of $FeCl_3$ for $20 \ minutes$?

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