How long will it take for a uniform current of 6.0 ampere to deposite 78.0 g gold from asolution of `AuCl_(4)^(-)` ? What mass of chlorine gas will be formed simultaneously at the anode in the electrolytic cell ?

Answer

19104 second; chlorine liberated = 42.17 g

Explanation

`AuCl_(4)^(-)+underset(3F)(3e^(-)) rarr underset("1 mole")(Au)+4Cl^(-) ("Cathode")`
`2Cl^(-) rarr underset("1 mole")(Cl_(2))+ underset(2 F)(2e^(-)) ("Anode")`