Question

При серебрении изделия на катоде за 30 мин отложилось серебро массой 5,04 г. Определите силу тока при электролизе, если электрохимический эквивалент серебра 1,12·10-6 кг/Кл.

Answer 1

Первый закон Фарадея:
m=k*I*t
I=m/k*t=5,04*10^-3/1,12*10^-6*1800=2,5 A

Answer 2

Calculation of Current during Electroplating

To determine the current during electroplating, we can use Faraday's law of electrolysis, which states that the amount of substance deposited or liberated during electrolysis is directly proportional to the quantity of electricity passed through the electrolyte.

The equation for Faraday's law is as follows:

Q = I * t

Where: - Q is the quantity of electricity passed in coulombs (C) - I is the current in amperes (A) - t is the time in seconds (s)

In this case, we are given that 5.04 grams of silver was deposited on the cathode in 30 minutes (or 1800 seconds). We also know that the electrochemical equivalent of silver is 1.12 x 10^-6 kg/C.

To find the current, we need to rearrange the equation:

I = Q / t

Now, we can substitute the given values into the equation:

I = (5.04 g * 1 kg / 1000 g) / (1.12 x 10^-6 kg/C * 1800 s)

Simplifying the equation:

I = 5.04 / (1.12 x 10^-6 * 1800)

Calculating the value:

I ≈ 2.78 A

Therefore, the current during electroplating is approximately 2.78 amperes.