Write the formula for each of the following compounds.

(a) Diamminesilver(I) nitrate

(b) Potassium diaquadioxalatocobaltate(III)

Video transcript

Hello, everyone. Today, we have the following problem. Write the chemical formula for sodium hex and nitro Cobalt three. So first, we have to break down the name we have sodium, which indicates the presence of sodium ions. And then we have the name Hex, nitro hea means six. And nitro refers to the nitro ligand, which is as follows in L two minus and there are six of these. And then lastly, we have Cobalt 83 and this indicates that the metal center is Cobalt and the Roman numer three denotes that Cobalt has an oxidation state or charge of positive three. So considering this information, we know that Cobalt is in the middle, in the center and then we have six nitro ligands. Now let's consider their charges. So we stated earlier that Cobalt has a charge of positive three and each nitro lyin has a charge of negative one. And then there are six of them and has a total charge of minus a six. So if we were to add these two together, we would get a charge of minus three and it's the charge of the complex ion. And so that complex ion includes our nature group and our cobal Tate group. So then to balance out this charge of the complex ion, we need to figure out how many sodium atoms we can have to balance it out. And so if each sodium atom has a charge of positive one and the ion has a charge of negative three, we simply need three sodium ions to balance that out. And when we do, we get the following. And so if we look at our answer choices, we can see that answer choice, see best reflect this. And so with that, we have answered the question overall, I hope this helped. And until next time.