We’re being asked to identify an unknown metal M given that it takes 74.1 s for a current of 2.00 A to plate out 0.107 g of the metal from M(NO3)3 .
Let’s first determine what happens to M3+:
• M(s) must be formed from M3+(aq)
• M3+ needs to gain 3 e- in order to become M(s)
When a solution containing M(NO3)3 of an unknown metal M is electrolyzed, it takes 74.1 s for a current of 2.00 A to plate out 0.107 g of the metal. The metal is
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Electroplating concept. If you need more Electroplating practice, you can also practice Electroplating practice problems.