Male Speaker: Hydrocarbon derivatives that have this functional group of the end that's called the functional group like the OH is a functional group that alcohol part. Well, this is called the carboxylic acid part. Whatever, the rest of it is, you always going to have this at the end, which is really nice, it's kind of located right there, it's deposited right at the end of the molecule and not have to worry about figuring out where it is, it's always at the end.
So, this one mole - let's say that's a hydrogen. So, if that's hydrogen there, what do you call this? Well, all carboxylic acids end in oic acids. So, this is going to be because this is a meth and it used to be methane, we are going to go not math - well you don't like math. We like meth, but we don't like math not meth, you know okay. Methane, and then this is oic acid, so methanolic acid, right? It's also - there is no other name for that two by the way and another way that originally organic molecules are called is not just with meth prefix, but also the form.
So, this is also called formic acid because form comes from the Greek Formica, which means ant, the -- on the ground. Because when they bite you, they deposit an acid into you, which causes swelling and itching and that's this. Formic acid. Get it or methanoic acid -- prefer with that name, of course. What's that one called? Well, it's called eth. Eth with an oic acid. Yeah, yeah that's ethanoic acid.
Hey, what else is ethanolic acid to you? Ethanoic acid. Well, you know about to be when you drop it to a concentration that is a far or less in the 16 mole per liters and this can come in concentrated form like about 3% solution, you get vinegar; that's vinegar right there, you don't get ethanolic acid. Another prefix for the ethane was always acetic acidic acid, right? So, this is acetic acid or ethanolic acid right here.
Now, what do you going to call this one right here? Yeah that's pretty obvious isn't? One, two, three carbons long with an oic acid at the end that's propanoic acid. Now, there is one that you just might need to be aware of watch this 0:02:28 not another one of these dye substituted derivative things. Yeah, we didn't do one before either, but by the way, if I set you and what's the name in this and we have an OH group and an OH group here that molecule right there would be called well that's ethanol, but it's got two OLs in it, so it's Ethandyl. What would this be called?
Well that's going to be called ethane and there are two oic acids, so its ethane diodioic acid. Nobody likes to call it ethandioic acid because if you are familiar with your acid base unit still HOOCCOOH that's an oxalic acid.
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