Use the given equasion and the Standard Reduction Potentials table to determine which statement is true. Remember that any spontaneously operating cell has a positive E0cell value. eq: E°cell = E°red (cathode) - E°red (anode)  options:   Copper is the cathode and zinc is the anode.   Zinc is the cathode and lead is the anode.   Aluminum is the cathode and copper is the anode.   Aluminum is the cathode and lead is the anode.   Copper is the anode and aluminum is the cathode.   Aluminum is the cathode and zinc is the anode.   Copper is the anode and lead is the cathode.   Zinc is the cathode and copper is the anode.

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Use the given equasion and the Standard Reduction Potentials table to determine which statement is true. Remember that any spontaneously operating cell has a positive E0cell value.

eq: E°cell = E°red (cathode) - E°red (anode) 

options:

 

Copper is the cathode and zinc is the anode.

 

Zinc is the cathode and lead is the anode.

 

Aluminum is the cathode and copper is the anode.

 

Aluminum is the cathode and lead is the anode.

 

Copper is the anode and aluminum is the cathode.

 

Aluminum is the cathode and zinc is the anode.

 

Copper is the anode and lead is the cathode.

 

Zinc is the cathode and copper is the anode.

### Standard Electrode Potentials for Various Reactions

The following table displays standard electrode potentials (E°) for several reduction reactions in aqueous (aq) solutions, measured in volts (V). These values indicate the tendency of a species to gain electrons (be reduced) under standard conditions.

| **Reaction**                                      | **E° (V)**  |
|---------------------------------------------------|-------------|
| Li⁺ (aq) + e⁻ → Li (s)                            | -3.04       |
| Al³⁺ (aq) + 3e⁻ → Al (s)                          | -1.66       |
| 2 H₂O (l) + 2e⁻ → H₂ (g) + 2 OH⁻ (aq)             | -0.83       |
| Zn²⁺ (aq) + 2e⁻ → Zn (s)                          | -0.76       |
| Cr³⁺ (aq) + 3e⁻ → Cr (s)                          | -0.74       |
| Fe²⁺ (aq) + 2e⁻ → Fe (s)                          | -0.45       |
| Ni²⁺ (aq) + 2e⁻ → Ni (s)                          | -0.26       |
| Pb²⁺ (aq) + 2e⁻ → Pb (s)                          | -0.13       |
| Fe³⁺ (aq) + 3e⁻ → Fe (s)                          | -0.04       |
| 2H⁺ (aq) + 2e⁻ → H₂ (g)                           | 0.00        |
| Cu²⁺ (aq) + 2e⁻ → Cu (s)                          | +0.34       |
| O₂ (g) + 4 H⁺ (aq) + 4e⁻ → 2 H₂O (l)              | +1.23       |

### Explanation:
- Each reaction shows the reduction of a particular ion in solution to its corresponding element in solid form, or gas evolution in the case of water and hydrogen. 
- The E° value is a measure of the potential difference between the electrode and a standard hydrogen electrode under standard conditions (25°C, 1M concentrations, and 1 atm pressure).
- A more positive
Transcribed Image Text:### Standard Electrode Potentials for Various Reactions The following table displays standard electrode potentials (E°) for several reduction reactions in aqueous (aq) solutions, measured in volts (V). These values indicate the tendency of a species to gain electrons (be reduced) under standard conditions. | **Reaction** | **E° (V)** | |---------------------------------------------------|-------------| | Li⁺ (aq) + e⁻ → Li (s) | -3.04 | | Al³⁺ (aq) + 3e⁻ → Al (s) | -1.66 | | 2 H₂O (l) + 2e⁻ → H₂ (g) + 2 OH⁻ (aq) | -0.83 | | Zn²⁺ (aq) + 2e⁻ → Zn (s) | -0.76 | | Cr³⁺ (aq) + 3e⁻ → Cr (s) | -0.74 | | Fe²⁺ (aq) + 2e⁻ → Fe (s) | -0.45 | | Ni²⁺ (aq) + 2e⁻ → Ni (s) | -0.26 | | Pb²⁺ (aq) + 2e⁻ → Pb (s) | -0.13 | | Fe³⁺ (aq) + 3e⁻ → Fe (s) | -0.04 | | 2H⁺ (aq) + 2e⁻ → H₂ (g) | 0.00 | | Cu²⁺ (aq) + 2e⁻ → Cu (s) | +0.34 | | O₂ (g) + 4 H⁺ (aq) + 4e⁻ → 2 H₂O (l) | +1.23 | ### Explanation: - Each reaction shows the reduction of a particular ion in solution to its corresponding element in solid form, or gas evolution in the case of water and hydrogen. - The E° value is a measure of the potential difference between the electrode and a standard hydrogen electrode under standard conditions (25°C, 1M concentrations, and 1 atm pressure). - A more positive
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