Question

What mass of zinc (2) ion will be reduced by 1 mole of electron?

Answer 1

Answer:

2-mole electrons needed to reduce 1 mole of Zinc.

0.5 mole Zinc will be reduced by 1 mole of electrons.

Mass = 65.39 * 0.5

= 32.69g

Answer 2

32.65 g of zinc (2) ion will be reduced by 1 mole of electron

Explanation:

1 electron carry charge=$1.6\times 10^{-19}C$

1 mole of electrons contain=$6.023\times 10^{23}$ electrons

Thus  1 mole of electrons carry charge=$1.6\times 10^{-19}C\times 6.023\times 10^{23}=96500C=1Faraday$

$Zn^{2+}+2e^-\rightarrow Zn$

Thus 2 mole of electrons deposit 1 mole of zinc

2 moles of electrons deposit= 65.3 g

Thus 1 mole of electrons deposit=$\frac{65.3}{2}\times 1=32.65g$

Thus 32.65g of zinc (2) ion will be reduced by 1 mole of electron.

Learn more about faradays law

https://brainly.in/question/1440189

https://brainly.in/question/10513111