In an electrolysis experiment, the ammeter records a steady current of 1 A. The mass of copper deposited in 30 minutes is 0.66 g. Calculate the error in the ammeter reading. [Electrochemical equivalent of copper = 0.00033 g C\(^{-1}\)]
Explanation
M = zit
I = \(\frac{M}{Zt}\) = \(\frac{0.66}{30 \times 60 \times 33 \times 10^{-5}}\)
= 1.11A
Error = 1.11 - 1
= 0.11A