When to use units of mole?

$E_{cell} = E_{cell}^{\circ}-\frac{RT}{nF}\ln Q$

Tiffany Chao 2H
Posts: 117
Joined: Fri Aug 09, 2019 12:17 am

When to use units of mole?

Whenever the problem asks for a calculation that requires the Nernst's equation, the solution manual never shows n (the number of moles) to be in the units of moles. For example, if the redox reaction used 2 moles, it would be 0.0257 V/2 instead of 0.0257 V/2 moles. Is there a reason why for this?
When calculating w max for 6N.17, they used the mole unit however. They wrote w max = -(1 mole)(96485 J/V.mol)(0.0874 V). I'm unsure on when and when not to use "mole".

Thanks

Daniel Chen 2L
Posts: 101
Joined: Fri Aug 30, 2019 12:15 am

Re: When to use units of mole?

Would it not be better to just include the unit in your calculations? I'm not too sure if you can just leave it out or not.

Ruby Richter 2L
Posts: 103
Joined: Thu Jul 25, 2019 12:17 am

Re: When to use units of mole?

If you use it in your calculations for each term when it applies and the units cancel I don't think you'd need to use it.

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