00:01
For the following problem, we are given five substances, and we have to label them each as either strong acid or weak acid or negligible acid.
00:11
Once we've done that, we have to write the formula for the conjugate base, and then we need to indicate whether the conjugate base is strong, weak, or negligible basisity.
00:23
So i'm going to write each of our substances here.
00:27
A is hno2.
00:30
Then we have h2s -o -4, h3 -p -o -4 -2 -minus, what am i doing? h -p -o -4 -2 -minus, methane, ch4, and ch3 -nh3 plus.
01:07
This is an ion related to nh4 -plus.
01:12
So this is our given.
01:20
I should have given myself some more room here.
01:29
That's sort of going to be ugly for my headings, for my columns, but that's okay.
01:36
Do it.
01:37
So next we're going to strong, weak, or negligible.
01:49
And our first is a weak acid...