How do you calculate the charger of sulphur (sorry I’m really dumb). And what’s ON x?
The sulfate ion SO4^2- has a charge of 2- The sulfur in it has an oxidation number (which I called ON) +6 I called the ON of aluminium x because it's unknown, then I solved for it. Did your teacher not explain this topic??
The sulfate ion SO4^2- has a charge of 2- The sulfur in it has an oxidation number (which I called ON) +6 I called the ON of aluminium x because it's unknown, then I solved for it. Did your teacher not explain this topic??
Sorry I don't understand..
I understand now that x is 2x because aluminium is Al2. But I don’t understand why you did 3 x (-2). Is the -2 from the oxygen? And the 3 from the 3 part of the bracket of (SO4)3? Do you mind explaining it in steps and tell me if we need to turn it into an ion? Or maybe present your working out in a visual way. Sorry for bothering you. I have learning difficulties so I know it’s tough to explain things to me
Our teacher told us we turn it into an ion or something like that. I don’t remember and I thought I knew this topic but it turns out I don’t. I currently have no contact with the teacher so I can’t ask for help 😕
I understand now that x is 2x because aluminium is Al2. But I don’t understand why you did 3 x (-2). Is the -2 from the oxygen? And the 3 from the 3 part of the bracket of (SO4)3? Do you mind explaining it in steps and tell me if we need to turn it into an ion? Or maybe present your working out in a visual way. Sorry for bothering you. I have learning difficulties so I know it’s tough to explain things to me
Ok, don't worry about it!
Al2(SO4)3
The way I'm doing it is considering the Al and SO4 units separately
I know that SO42- has 2- charge.
The oxidation number of aluminium (I call it x because I need to calculate it, it is unknown) is equal to its charge
The overall charge is zero.
If I add charges of 2 Al(x+) units and 3 SO4(2-) units I get 0.
To calculate oxidation number of sulfur in sulfate (SO4)2-: use the fact that you know the oxidation number of oxygen as -2 then call the oxidation number of S x
To calculate oxidation number of sulfur in sulfate (SO4)2-: use the fact that you know the oxidation number of oxygen as -2 then call the oxidation number of S x
x + 4(-2) = -2 so x = +6
I’m feeling confused again (sorry). I know that Al2(SO4)3 and we turn (SO4)3 into (SO4)2- then what happens to the remaining 1 or does that disappear because it’s a charge now?
I’m feeling confused again (sorry). I know that Al2(SO4)3 and we turn (SO4)3 into (SO4)2- then what happens to the remaining 1 or does that disappear because it’s a charge now?
You can't turn (SO4)3 into (SO4)2-.. that's turning S3O12 into SO4(2-) which makes no sense because atoms are not balanced and charges are not balanced. Not sure what you mean by remaining 1. I don't really understand your working.
Al2(SO4)3 is a shorthand way of writing [Al3+]2[SO42-]3
I’m feeling confused again (sorry). I know that Al2(SO4)3 and we turn (SO4)3 into (SO4)2- then what happens to the remaining 1 or does that disappear because it’s a charge now?