How many minutes will it take to plate out 2.19 g of chromium metal from a solution of cr3+cr3+ using a current of 55.2 amps in an electrolyte cell?

Answer : The time it take to plate out will be, 3.69 minutes.

Explanation :

First we have to calculate the moles of Cr.

Molar mass of Cr = 51.9 g/mol

The cathode half-reaction is,

From this we conclude that,

The number of electrons (n)  in the reaction are 3.

The quantity of charge required for the reduction of 1 mole of =

The quantity of charge required for the reduction of 0.0423 mole of =

Now we have to calculate the time taken.

We know that,

Thus, the time it take to plate out will be, 3.69 minutes.

the correct name for the n3 ion is azide. azide is a polyatomic anion with a -1 charge and is written as n3 -1. it consists of three nitrogen atoms bonded together. hope i . let me know if you need anything else.