 Okay, so we're going to decide which of these are weak acids and which of these are strong acids So remember the lecture we just did right? You know all the strong acids or how to identify what are strong acids, okay? so Just tell me is this a week or a strong acid? Weak acid right already. We know it because it doesn't have any oxygen to it for what we've learned The strong acids either are going to be what? HI or HCl, HBr, HI Right, or they're going to have some oxygens out, right? So this isn't any of those things so we already know it's a weak acid Well, I just gave away this one right from that explanation of the last one. So what is this strong acid, right? Because that's one of the Allogen acids, okay, what about this one? The strong, strong acid. How'd you figure that one out? Sepharic acid table 4. Well, definitely that you know you look at the table, okay? But what did we say about the number of oxygens relative to hydrogen? Is that two or more? Two or more, right? So this is this, that's four to two, right? So that's two or more, okay? So this is what did we say? Strong, strong So let's use that same rule here What have we got? Is this a strong or weak? Weak, right? Why? Because it only has one more oxygen. One more oxygen? Is that two or more? Yeah, it has to have two or more So weak What about this one? Weak This one's easy, okay? You don't have to go about counting your hydrogens and oxygens whenever you see the COOH You know that's a weak acid That's a weak acid, yeah That's called a carboxylic acid Okay, so we'll label that as that Whenever you see that, COOH, that's a weak acid So HF is a weak acid as well? And this HF, no, that's what we said was Well, it's the only hydrogenic acid that's not a strong acid So this is a weak acid What did we say at the very beginning of this, yo? The only hydrogenic acids that are strong are HCO, HBR and HI Is that one of those three, four, three? No Okay, so it's a weak acid Oh, I got to know Do you like to mess up the videos, huh?