00:01
Now we'll be finding the formulas of some acids given their names.
00:05
We're going to start with hydrosyanic acid, which, because of the prefix hydro and ending ick, we know there's no polyatomic ion here, and we can simply add hydrogen to the cyanide to give us hydrosyanic acid.
00:23
Next up we have nitric acid.
00:26
Since it ends in ick, we know we're going to have nitrite as our an ion.
00:30
Nitrite we know is no3 minus.
00:35
And to make it an acid, we have a hydrogen up front.
00:38
So hn -o -3 is our formula.
00:41
Next we have sulfuric acid.
00:44
The ending egg tells us the anion here is sulfate.
00:49
Or sulfate, sorry.
00:51
So we have h -s -o -4.
00:55
And since sulfate as a polyatomic ion has a negative 2 charge, we're going to need two hydrogens to even out our charge.
01:05
Next up we have phosphoric acid.
01:08
And once again, the ending egg tells us phosphate is going to be our anion...