00:01
Okay, so we want to determine the following are true or false.
00:04
And for the first one, we're told that this ester has the same, is this structural isomer of petinoic acid.
00:12
And we're given a four carb, i mean a five carbon ester.
00:18
So it looks like this.
00:25
We're comparing this to petinic acid, which is a five carbon carbosyl acid.
00:32
One, two, three, four, five.
00:36
So a structural formula, i mean, a structural isomer has the, same formula, which is a different arrangement of the atoms.
00:43
In each of these we have five carbons.
00:50
We're going to have two, four, six, nine, ten hydrogens.
00:56
And if you look at the hydrogen's all in this one, it's going to be three, five, seven, and ten as well.
01:06
We also have two oxygens in each.
01:07
So therefore, this is going to be the isomer of petinoc acid.
01:17
X1 is a, the two -methyl -three petanone is an isomer of the structure.
01:25
We have a one, two, three, four, five carbon aldehyde with methyl and carbon four.
01:40
And again, we're comparing this to two methyl three petanone, a five carbon ketone.
01:53
Okay, so we have five carbons in each.
01:57
If we look at the hydrogen, so we have three here.
01:59
It'll be six, eight, and it's going to be 11.
02:06
And over here is one, three, five, eight, nine, and twelve.
02:23
I'm sorry, we have another hydrogen here on this methyl group.
02:27
I mean, on that carbon, so therefore it's going to be 12.
02:30
And we're also going to have just one action atom in each structure.
02:39
So therefore, this is going to be an isomer of four methyl petanol.
02:47
So that one's true as well.
02:49
So far, we have true, true.
02:53
And the next one is that this ether is an isomer of two petanol.
02:59
We have a one to, we have ethyl -purple ether.
03:11
So an oxygen attached to an ethyl group as well as a purple.
03:14
And we're told that this is an isomer of two petanol, which is a five carbon alcohol.
03:22
Okay, so count on the number of carbon atoms, we're going to have five in each.
03:28
Two in the ethyl, three on the purple here as well.
03:33
We're going to have three hydrogen there.
03:34
5, 7, 9, 11, and 12.
03:41
The auction.
03:44
Looking at this...