Question

Electrolysis of an NaCl solution with a current of 2.00 A for a period of 200 s produced 59.6 mL of Cl2 at 650 mm pressure and 27° C. Calculate the value of the faraday from these data.

Answer 1

0.00415F

Step-by-step explanation:

Given parameters:

Current in the solution = 2A

Time = 200s

Volume of chlorine gas = 59.6mL

Pressure = 650mmHg

Temperature = 27° C

Unknown parameter:

The faraday which is the quantity of electricity used = ?

Solution:

The quantity of electricity used in the reaction is derived from the product of the current passed through the solution and time duration. It is expressed in coulombs.

Q = I x t

where I is the current

t is the time

Q = 2 x 200 = 400coulombs

One faraday is the quantity of electricity produced by one mole of electrons:

1Faraday = 96500 coulombs

Therefore 400coulombs gives
`(400)/(96500)` = 0.00415F