So, once again, f is Faradays constant times our cell voltage. So this n times f is simply charge. It's the same thing. Now, for example, if we have 1 mol in our cell, that means we multiply 1 mol times f.
So 1 mol times this guy gives us the most cancel, and we simply get our charge. So n times f is our charge. Now, this equation becomes important when we build a relationship between our cell voltage and gear spree energy.