Nickel is electroplated from a NiSO₄ solution. A constant current of 5.72 amp is applied by an external power supply. How long will it take to deposit 2.08 × 10² g of Ni? (The atomic mass of Ni is 58.69 g/mol.)

Question

Quizplus · Accepted Answer

To find the time, use the formula: time = (mass × n × F) / (current × M), where n is the number of electrons (2 for Ni²⁺), F is Faraday's constant (96485 C/mol), and M is the molar mass of Ni. Plugging in the values gives approximately 33.2 hours.

Nickel Is Electroplated from a NiSO4 Solution

Nickel Is Electroplated from a NiSO₄ Solution