1.How many minutes would it take for 2.15 grams of nickel to be plated from a Ni
ID: 923797 • Letter: 1
Question
1.How many minutes would it take for 2.15 grams of nickel to be plated from a Ni2+ solution if the current is 0.850 amps? (Molar mass of nickel is 58.69 g/mol)
2.Which of these metals could act as a sacrificial anode for iron?
Pb
Co
Mg
3. A concentration cell is made using two Ni electrodes with Ni2+ concentrations of 1.0 M and 1.0x10-4 M in the two half-cells. Which of these statements about this cell is false?
The 1.0x10-4 M Ni2+ solution is in the anode half-cell.
Eo for the overall reaction is 0 V.
The overall cell potential will be -.26 V.
When the cell reaction reaches equilibrium, the Ni2+ concentrations will be equal.
a.Pb
b.Co
c.Mg
Explanation / Answer
Answer for question 2 is c) Mg
Answer for question 3 is option a) The 1.0x10-4 M Ni2+ solution is in the anode half-cell
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.