 So, let's try this problem and it says what is the KV of sodium acetate if the Ka of acetic acid is 1.8 times 10 to the negative 5. Okay? So, we're looking for this thing here, what is the KV of this thing here, essentially. That's like sodium acetate without the sodium, and so this is the important part. So, we do know, so hopefully you guys see this is the conjugate acid of that, okay? We know the Ka of the conjugate acid of that. How will we figure out the KV, does anybody know how to do this? KW. Yeah. KW, yeah. Ka times KV. That's the formula you're going to use. Okay? So, we're looking for KV, so this is Ka of the acid KV of its conjugate base. Okay? So, we're looking for KV, so we've got Ka, KW of 1.0 times 10 to the negative 14 divided by Ka, 1.8 times 10 to the negative 14. And that should give you the KV of sodium acetate or the acid KV of sodium acetate. Okay? Any questions on this one? Yeah, you've got to figure out the acid and the conjugate. Yeah, so everything besides that proton. Any other questions?