#How to calculate keq how to#

For our reduction half reaction, we left it how it was written, all right. So, for the reduction half reaction, the standard reduction Standard reduction potential, we just change the sign, all right. Three electrons, right, so loss of electrons is oxidation. So we reverse our half reaction to start with solid aluminum, so aluminum turns into aluminum three plus and to do that it loses So we need to reverse it, right? We need to start with solid aluminum.

But this half reaction is written as a reduction half reaction. To aluminum three plus, so solid aluminum must be losing electrons to turn into aluminum three plus. Happening with aluminum, we're going from solid aluminum So we're gonna keep this, we're gonna keep this Now we can see that's what's happening in our redox reaction up here, right? We can see see that we're going from solid iodine on the left side and we have iodideĪnions on the right side. Potential for this half reaction is positive. Iodine gaining electrons, so it's being reduced to So, let's start with thisįirst half reaction here, where we see solid

#How to calculate keq how to#

And we've seen how to find E zero, the standard cell potential Zero for this reaction, we can calculate theĮquilibrium constant K. Talked about the relationship between the equilibrium constant K and the standard cell potential. Now we're gonna use the standard reduction K for this reaction, so for this reaction right here. Our goal is to calculate the equilibrium constant