Question 1
The standard emf for the cell using the overall cell reaction below is +0.48 V:
Zn(
s) + Ni
2+(
aq) → Zn
2+(
aq) + Ni(
s)
The emf generated by the cell when [Ni
2+] = 6.50 mol L
-1 and [Zn
2+] = 0.500 mol L
-1 is
◦ 0.55
◦ 0.50
◦ 0.51
◦ 0.45
◦ 0.61
Question 2
The gas OF
2 can be produced from the electrolysis of an aqueous solution of KF, as shown in the equation below:
| OF2(g) + 2H+(aq) + 4 e- → H2O(l) + 2F-(aq) | E° = +2.15 V |
Using the given standard reduction potential, calculate the amount of OF
2 that is produced, and the electrode at which the OF
2 is produced, upon the passage of 0.480 faradays through an aqueous KF solution.
◦ 26.0 g of OF
2 at the anode
◦ 6.48 g of OF
2 at the cathode
◦ 6.48 g of OF
2 at the anode
◦ 26.0 g of OF
2 at the cathode
Amphipathic compounds in aqueous solution
Solution to exponential problem
Integral Solution
Electrolysis lab help
Incomplete dominance shown in the flower color of snapdragons