00:02
So the question is, do empirical and molecular formulas of a compound have the same percent compositions? so the quick answer to that is yes.
00:12
They have the same percent compositions.
00:15
The difference being empirical formula is the lowest whole number ratio of the elements in that compound, whereas a molecular formula is actually how much of each element is in that compound.
00:29
So to make sense of this, let's look at glucose.
00:33
So glucose, the official molecular formula is c6h1206.
00:41
So this is the molecular formula.
00:47
And the empirical formula is the lowest whole number ratio of every single element.
00:54
So the lowest whole number ratio is going to be c1h2.
01:05
And then 01.
01:08
That is the empirical formula.
01:13
Now, to answer your question, yes, it's the same percent composition, because when you look at it, you have six of carbons, six oxygens, and 12 hydrogens.
01:28
So that means out of the 24 total atoms, half of those atoms are still hydrogen, compared to one, two, or one, one, and two...