A voltaic cell that uses the reaction tl3+(aq)+2cr2+(aq)→tl+(aq)+2cr3+(aq) has a measured standard cell potential of +1.19 v. write the two half cell reactio

Respuesta :

The given net reaction is:

Tl³⁺(aq) + 2Cr²⁺ (aq) → Tl⁺(aq) + 2Cr³⁺(aq)

The half cell reaction are:

Anode(Oxidation): Involves loss of electrons

Cr²⁺(aq) ↔ Cr³⁺(aq) + e⁻  ----------(1)

Cathode(reduction) : Involves gain of electrons

Tl³⁺ (aq) + 2e⁻ ↔ Tl⁺ (aq) ---------(2)

The net equation can be obtained by:  2* eq(1) + eq(2)

Cr²⁺(aq) ↔ Cr³⁺(aq) + e⁻  ----------(1)*2

------------------------------------------------

 2Cr²⁺(aq) ↔ 2Cr³⁺(aq) + 2e⁻

Tl³⁺ (aq) + 2e⁻ ↔ Tl⁺ (aq) --

-------------------------------------------

Tl³⁺(aq) + 2Cr²⁺ (aq) → Tl⁺(aq) + 2Cr³⁺(aq)

The study of the chemical in the cell is called electrochemistry.

The correct answer is mentioned below.

What is standard cell potential?

  • In electrochemistry, the standard electrode potential is defined as "The value of the standard emf of a cell in which molecular hydrogen under standard pressure is oxidized to solvated protons at the left-hand electrode".

The given net reaction is given as follows:-

[tex]Tl^{3+}(aq) + 2Cr^{2+} (aq) -----> Tl^+(aq) + 2Cr^{3+}(aq) [/tex]

The half cell reaction is: Anode(Oxidation): Involves loss of electrons

  • [tex]Cr^{2+}(aq) <----> Cr^{3+}(aq) + e^- [/tex]

Cathode(reduction) : Involves gain of electrons

  • [tex]Tl^{3+} (aq) + 2e^- <---> Tl^+ (aq) [/tex]

Hence, the two-cell reaction is described as mentioned.

For more information about the galvanic cell, refer to the link:-

https://brainly.com/question/6587304