00:01
The problem 78 requires we have to write empirical formula for the three compound structure in the figure, right? and before you do this, you have to write the molecular first, and then after you write molecular formula, and you find the ratio of the atom and the molecular formula.
00:20
You have to find the smallest ratio, that's the empirical formula.
00:25
And now let me write the structure first, and we find the molecular formula.
00:32
So 78.
00:34
You're the first one, like zero, d -high.
00:51
So this formula, you have, how many see here? 1, 2, 3.
00:54
You get a molecular formula.
01:05
For this compound is c3h603.
01:12
So the next one, then you get the same, c3, s603.
01:33
And then the last one.
01:58
Then you got this one, c4, h8, 04.
02:06
And this is molecular formula.
02:09
So empirical formula, that means the ratio between the number of atoms in the molecule, the seamless ratio, the smaller ratio.
02:18
So the empirical formula.
02:29
So this is with six over one, two, right? so c1, you don't need to write an 01...