We’re being asked to determine the species forme at the electrodes when an aqueous solution of FeF2 is electrolyzed.
Recall that the cathode is where reduction occurs while the anode is where oxidation occurs.
Since FeF2 is an ionic compound, it forms ions when dissociating in water.
The dissociation of FeF2 in water is as follows:
The fluoride ion, F–, has a charge of –1. Iron then has a charge of +2:
FeFr2(s) → Fe2+(aq) + 2 F–(aq)
When an aqueous solution of FeF2 is electrolyzed, what forms at the electrodes?
a. Cathode: Fe; anode: Cl2
b. Cathode: Fe; anode: O2
c. Cathode: H2; anode: Cl2
d. Cathode: H2; anode: O2
e. Cathode: Fe; anode: H2
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 Electrolysis of Water & Mixture of Ions concept. If you need more Electrolysis of Water & Mixture of Ions practice, you can also practice Electrolysis of Water & Mixture of Ions practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Shafaat's class at OSU.