## oxidation state equation

Katie Bart 1I
Posts: 104
Joined: Sat Aug 24, 2019 12:16 am

### oxidation state equation

Do we need to memorize the equation to determine the oxidation number of a coordination compound? And are we going to learn this equation in class?

Sydney Jacobs 1C
Posts: 59
Joined: Thu Jul 25, 2019 12:15 am
Been upvoted: 1 time

### Re: oxidation state equation

Usually, the oxidation number of the metal can be calculated using the overall charge of the compound and the known charges of anions. For example, in the ion [FeCl(OH2)5]+, the overall charge is +1, water is neutral, and Cl has a charge of -1. So, Fe must have a charge of +2. The oxidation number is therefore II.

Sarah Nichols 4C
Posts: 52
Joined: Sat Aug 24, 2019 12:18 am

### Re: oxidation state equation

If you want to think about it in terms of a formal equation, it would be:

Oxidation state of metal=net charge of compound-(total charge of anions)

it may be easier to just remember the concept though, that the net charge of the compound must be the sum of the charges of all the ions