Answer:
20.2g (3 s.f.)
Explanation:
Please see attached picture for full solution.
Answer:- cell potential = -0.19 volts
Solution:- The equation that shows the connection between
and cell potential, E is written as:

in this equation, n stands for moles of electrons, E stands for cell potential and F stands for faraday constant and it's value is
.
It asks to calculate the value of E, so let's rearrange the equation:

Let's plug in the values in it:


since, 
Where C stands for coulombs and V stands for volts.
So, 
E = -0.19 V
So, the cell potential is -0.19 volts.
Answer: When atoms combine through chemical bonding, they form compounds—unique structures composed of two or more atoms. The basic composition of a compound can be indicated using a chemical formula.
Hope I was able to help! Mark me brainly it would help a lot!:)