Is Zn or Ag the anode?
Is Zn or Ag the anode?
Zinc is the anode (solid zinc is oxidised). Silver is the cathode (silver ions are reduced).
Is AG a cathode or anode?
cathode
A copper metal electrode is inside the gel. A metal ion solution (Ag+, Zn2+, or Pb2+) is poured over the gel. A corresponding metal electrode is placed in the solution….Explanation (including chemical equations):
| anode: | Cu (s) —> Cu 2+ (aq) + 2 e- | Eo = – 0.34 V |
|---|---|---|
| cathode: | Ag + (aq) + e- —> Ag(s) | Eo = 0.80 V |
Is Zn or Mg the cathode?
The magnesium is the anode—the site of oxidation, where magnesium ions flow into solution and electrons leave the electrode and flow through the voltmeter as they move to the zinc cathode. The zinc is the cathode—the site of reduction, where zinc ions flow onto the electrode as they pick up electrons.
What is the cell potential of AG?
0.80
Standard Electrode Potentials in Aqueous Solution at 25°C
| Cathode (Reduction) Half-Reaction | Standard Potential E° (volts) |
|---|---|
| Fe3+(aq) + e- -> Fe2+(aq) | 0.77 |
| Hg22+(aq) + 2e- -> 2Hg(l) | 0.80 |
| Ag+(aq) + e- -> Ag(s) | 0.80 |
| Hg2+(aq) + 2e- -> Hg(l) | 0.85 |
What is the anode and cathode in a voltaic cell?
The important parts of a voltaic cell: The anode is an electrode where oxidation occurs. The cathode is an electrode where reduction occurs. A salt bridge is a chamber of electrolytes necessary to complete the circuit in a voltaic cell.
What would be the cathode in magnesium and zinc galvanic cell?
Answer and Explanation: Zinc would be the cathode in galvanic cell.
What are the half reaction for a galvanic cell with Zn and Mg electrodes?
The emf of a half-cell, with respect to the standard hydrogen electrode, is called the reduction potential. The emf for the Mg-Zn cell described would be: E=Eo(red) (Zn) – Eo(red) (Mg) = -0.76 – (-2.38) = 1.62V if the solutions are 1.0 M.
What is the reduction potential for Ag+?
Table of Common Standard Reduction Potentials
| Reduction Half-Reaction | Reduction Potential – E0 in Volts |
|---|---|
| AgBr + e- → Ag + Br- | 0.0713 |
| AgCl + e- → Ag + Cl- | 0.2223 |
| AgF + e- → Ag + F- | 0.779 |
| AgI + e- → Ag + I- | -0.1522 |
What is the emf of the cell Zn Zn2+?
The standard emf of the cell Zn | Zn2+ || Ag+ | Ag is 1.56 V.
