00:02
In this problem, we're looking at acid strength, and for that, we're looking at p -k -a values.
00:10
So, just to understand this, k -a is hydrogen ion conjugate base over our acid concentration.
00:23
So a stronger acid will have more hydrogen ion, meaning higher k -a, but p -k -a is opposite.
00:30
A lower pca means a stronger acid.
00:39
So if we're looking at strongest to weakest, we're going to rank those based on pca.
00:52
So strongest will be our lowest pka value, and that's 1 .14.
00:59
And that's going to be your periodic acid.
01:03
Then we have 3 .74.
01:10
That's going to be a formic acid...