00:01
So it looks like you've got a few of these that are incorrect.
00:03
To determine whether or not it's acidic or basic, we ignore cations that are found in strong bases like sodium ion, calcium ion, potassium ion.
00:23
All of these are cations in strong bases.
00:27
Make sure you have your strong bases memorized.
00:30
And we ignore anions in strong acids like chloride, perchlorate, iodide, nitrate, and so on.
00:44
Make sure you have your strong acids memorized also.
00:48
So if we have calcium chloride, we're going to ignore the calcium, but we can't ignore the chloride because it's not part of a strong acid.
01:03
So it must be the conjugate base to a weak acid.
01:06
Therefore, it is significantly basic because of this.
01:14
The next one is ch3nh3.
01:23
Ch3nh2 is methyl amine, which is a significant base.
01:28
So if we add a hydrogen to it, it'll be its conjugate acid.
01:34
It's found as a salt with chloride.
01:37
Chloride we ignore.
01:40
This is now a significant base, the conjugate base...