Problem: The standard emf for the cell using the overall cell reaction below is +2.20 V:The emf generated by the cell when[Al3+] = 4.5 x 10-3 M and [I-] = 0.15 M is _____ V.

FREE Expert Solution

We're being asked to calculate the emf generated by the cell when [Al3+] = 4.5×10‒3 M and [I] = 0.15 M.


We're going to calculate for Ecell using the following steps:

Step 1: Write the two half-reactions and determine the anode and cathode.
Step 2: Write the overall reaction and determine the number of electrons transferred (n).
Step 3: Calculate Ecell using the Nernst equation.

Ecell=E°cell-(0.05916 Vn) log Q


Step 1: Write the two half-reactions and determine the anode and cathode.

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Problem Details

The standard emf for the cell using the overall cell reaction below is +2.20 V:

The emf generated by the cell when

[Al3+] = 4.5 x 10-3 M and [I-] = 0.15 M is _____ V.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the The Nernst Equation concept. You can view video lessons to learn The Nernst Equation. Or if you need more The Nernst Equation practice, you can also practice The Nernst Equation practice problems.