If a current of 2.5A flows through an electrolyte for 3 hours and 1.8g of a substance is deposited, what is the mass of the substance that will be deposited if a current of 4A flows through it for 4.8 hours?
-
A.
2.4g -
B.
3.2g -
C.
4.6g -
D.
4.8g
Correct Answer: Option C
Explanation
First let’s find z
z = (frac{M}{It})
z = (frac{1.8}{2.5 times (3 times 60 times 60)})
Therefore, the new M equals
M = zIt
M = (frac{1.8 times 4 times 4.8 times 60 times 60}{2.5 times 3 times 60 times 60})
M = 4.6g
There is an explanation video available below.