Write the formulas of potassium salicylate and disodium oxalate.

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Welcome back, everyone. Our next question says, true or false. The structural formulas of sodium benzoate and die potassium Gluta are drawn as and then we have two suggested structures for these two compounds. So we'll describe them in more detail as we think about what these structures should be. So first of all, we look at the names were given, we notice both have this a te eight ending and that a te ending indicates that we're looking at the salt of a carboxylic acid. So in each case, we want to start with apparent acid. So the case of sodium benzoate, that parent acid would be benzo acid. So let's think about what that structure would be. Well, that one's pretty straightforward, it would be a benzene ring with a carboxylic acid group. So we'll draw that benzene ring, six carbon ring with its three double bonds, we'll add on here, a carbonyl group. So attached carbon with a double bond in oxygen and then an oh so that's the benzo acid and the sodium benzoate. We're talking about the metal salt. So it's going to lose a proton. So erase that hydrogen and add a negative charge to the oxygen we're told in the name that it's sodium benzoate. So the salt, it pairs with the metal cion, it pairs with is sodium nap. So we look at our structure, we see the benzene ring and are now carboxylate group with our O minus paired with an N A plus. So this is the correct structure for sodium benzoate. Now, diet, potassium glut rate is a little trickier because the parent acid here will be glutaric acid. This is a common name. So you may need to look that up. So you'll see that glutaric acid is a five carbon linear dy carboxylic acid. So it has two carboxylic acid groups at either end of a five carbon chain. So let's draw five carbon chain, 12345 and then carbon one and carbon five are carboxylic acid groups. So I need carbon one and carbon five. We add a double bond in oxygen and then an oh group and do that to carbon five, double bond and oxygen O group. And it's going to lose the two hydrogens and we had a negative charge to both oxygens. Then we're told in our name, this is di potassium glitter. So the metal cion is potassium one on each side. So we add K plus and K plus on either side. So when we look at our structure, we indeed have 12345 carbons, carbons, one and carbons five have the carboxylate group. On it as it is now and that O minus is paired with A K plus on either side. So that structure of di potassium glut also correct. So our statement here is true. These are the structural formulas of sodium benzoate and die potassium glut. See you in the next video.

Write the formulas of potassium salicylate and disodium oxalate.

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Key Concepts

Chemical Formulas

Potassium Salicylate

Disodium Oxalate