00:01
So here we are looking at some oxy acid compounds.
00:08
Okay, and to just go over how these work in their polycomic anion form, we first start off, let's let go over here, just a simple one, fluorate.
00:25
So what happens now is, as the name is hinting towards oxy, we are changing the number of oxygens so we can add one we can take away all the way down to yep one two three four oxygens in what appears to be like the chlorate the chlorate oxyacid so we call this normal one this one that you're more used to see in chlorate then as we increase it it adds we get to add the prefix per okay and yes it remains chlorate per chlorate but now as we go down the first thing we're going to change is the suffix here so now for clo2 we will now change it from 8 to it okay for that decrease in oxygen now for another decrease in oxygen you will now call that one hypo, it gets a suffix and a prefix.
01:40
Hypochlorite.
01:41
Yeah, this one gets a lot.
01:44
Okay, so now with this, we should be able to recognize how some of these some of these compounds look like.
01:53
So the first one here is silver one per chlorate.
01:58
So try to memorize this, but okay.
02:03
Now having that in our memory, we can now tackle them.
02:07
So if we're starting off with silver per chlorate, we know ag plus and then a co instead of 3 minus, 4 minus.
02:18
We'll come together crisscross to form silver per chlorate.
02:27
Okay.
02:28
Now we have cobalt 3 plus a hydroxide.
02:33
So 3 plus we require three hydroxides, basically to.
02:39
Counter that 3 plus charge.
02:43
So we have cobalt here, hydroxide.
02:47
Cobalt through hydroxide.
02:50
Okay, now, um, question three, we have potassium dichromate.
02:56
Or no, sorry, next one.
02:59
We have sodium hypochlorite.
03:02
So just help you remember, like, you can memorize this.
03:07
Do you believe in yourself? but hypo.
03:09
Hypo.
03:09
Hypo.
03:11
We understand that, okay, that's to be, we've reduced some oxygen, then also has the it, meaning we've now reduced twice, because it has a prefix, has a suffix, has both of those, meaning, okay, we've lost two oxygens here.
03:31
So now we add our, like that, hypochlorite.
03:37
Okay, and that just simply comes together to look like that.
03:41
And now we're looking at something quite interesting.
03:44
We are looking at potassium dichromate.
03:50
Okay.
03:51
So here, now this is not really an oxyacid, so you sort of just, it is, but it doesn't follow that same rule.
04:01
So you have to memorize this one, unfortunately.
04:04
But this is a dichromate.
04:07
Promates, on the other hand, just sorry that.
04:11
Chromate looks like c are 04 to minus so you just have to memorize that there just not too bad okay so dichromate we can now see that okay chromate has it's dye we have two chromates just a little bit different so now um dye chromate is divalent meaning we would require two callions to completely form that salt...