00:01
The reaction we're working with in this first one is h plus plus f minus, gives us hf.
00:11
Well, the k for that, if you look at the reverse reaction, it would be the ionization of hf, which would be a ka.
00:18
So k for this is simply going to be 1 over ka for hf.
00:25
So this is just going to be 1 divided by 6 .9 times 10 to negative 4.
00:33
And that will give us a k of 1 .4 times 10 to the third.
00:39
Our second example, we're looking at oh minus plus h plus gives us water.
00:49
So again, let's look at the reverse reaction and see that that's the ionization of water.
00:55
So that would be kw...