Question

Write the cell notation for the voltaic cell that incorporates each of the following redox reactions:(b) Cu²⁺(aq) + SO₂(g) + 2H₂O}(l) →Cu(s) + SO₄²⁻(aq) + 4H⁺(a q)

Answer 1

The cell notation for the given voltaic cell is

SO₂(g) | SO₄²⁻(aq) || Cu²⁺(aq) | Cu (s)

What is a voltaic cell?

A voltaic cell often called a galvanic cell, is a type of electrochemical cell.

It is a combination of two metal rods called electrodes.

A half cell is formed when both electrodes are submerged in a solution containing a particular mix of ions.

The electrolyte is the liquid in which both electrodes are submerged and acts as a salt bridge connecting the half cells.

The cell undergoes a chemical reaction known as a redox reaction.

One of the electrodes serves as an anode and undergoes oxidation, while the other electrode serves as a cathode and undergoes reduction.

To write the cell notation, write the half-reaction of the cells.

At the anode, oxidation occurs

$SO_2(g) \longrightarrow SO_4^{2-}(aq) + 4H^+ (aq) + 2e^-$

At cathode

$Cu^{2+}(aq) + 2e^- \longrightarrow Cu(s)$

In the cell notation, the anode is written on the left side, and the cathode is written on the right side. A vertical line differentiates the phases and the double vertical line represents the salt bridge.

The cell notation for the given voltaic cell is

SO₂(g) | SO₄²⁻(aq) || Cu²⁺(aq) | Cu (s)

Learn more about cell notation:

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