Electrochemistry Nernst Equation

Oxidation occurs at the

• anode

• cathode

Tags

NGSS.HS-PS2-5

What is the equation and cell potential?

• 2Al³⁺ + 3Ni → 2Al + 3Ni²⁺ E^O = 1.89 V

• 2Al + 3Ni²⁺ → 2Al³⁺ + 3Ni E^O = 1.89 V

• 2Al³⁺ + 3Ni → 2Al + 3Ni²⁺ E^O = 1.43 V

• 2Al + 3Ni²⁺ → 2Al³⁺ + 3Ni E^O = 1.43 V

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NGSS.HS-PS1-2

NGSS.HS-PS1-4

Which statement is correct?

• Ca²⁺ can oxidize Ni

• Ni²⁺ can reduce Ca²⁺

• Fe³⁺ can oxidize Ni

• Fe³⁺ can reduce Ca²⁺

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Calculate the cell potential of voltaic cell

• –1.51

• - 0.03

• +0.03

• +1.51

Tags

NGSS.HS-PS3-1

Consider the galvanic cell reaction Zn (s) + Cu²⁺ (aq) → Cu (s) + Zn²⁺ (aq) When the cell is running spontaneously, which is the only true statement?

• The copper electrode loses mass and the zinc electrode is the cathode.

• The copper electrode gains mass and the copper electrode is the cathode.

• The zinc electrode gains mass and the zinc electrode is the anode.

• The zinc electrode loses mass and the zinc electrode is the cathode.

It is a branch of chemistry that deals with interconversion between chemical and electrical energy. This process involves redox reaction.

• Electromagnetism

• Electrochemistry

• Electronic Chemistry

• none of the choices

The __________ force (EMF) is the maximum electrical potential difference between two electrodes or half-cells of a galvanic or voltaic cell.

• ELECTROMOTIVE

• ELECTROMAGNETIC

• ELECTROMETALLIC

• ELECTROMECHANIC

Tags

NGSS.HS-PS2-5

What is the Nernst equation used for in electrochemistry?

• To calculate the cell potential under non-standard conditions

• To determine the rate of a chemical reaction

• To measure the pH of a solution

• To find the concentration of a solute

Which of the following is the correct form of the Nernst equation?

Tags

NGSS.HS-PS3-1

In the Nernst equation, what does the variable 'n' represent?

• The number of moles of electrons transferred

• The concentration of ions

• The temperature in Kelvin

• The gas constant

Tags

NGSS.HS-PS2-5