00:01
We can show that a substance is a weak base by showing that when it reacts with water, it produces oh minus in solution.
00:08
So let's go ahead and show that for each of these.
00:12
This first one is a classic compound's called amines.
00:16
So we'll go ahead and react it with water.
00:19
Now if it's a base, that means the acid gives an h plus to the base.
00:23
So the water is the acid.
00:25
So it's going to give an h plus to the base.
00:28
So with a means, we go ahead and tag that h plus on at the end.
00:34
So it makes that, and the water becomes oh minus.
00:38
So we've shown that it's a weak base by showing that it makes oh minus in solution.
00:45
This hc2o4 minus is amphoteric, which means it could act as an acid or a base.
00:51
It could gain an h plus or lose an h plus.
00:55
But in this case, we're being asked to show that it's a weak base...