00:02
Okay, so empirical formula of the styrene is ch.
00:07
And the more mass of the styrene is 104 .14.
00:13
So now what we can calculate is the unit of the ch.
00:18
So the more mass of the ch is 12 plus 1, that is 13.
00:27
So that means the unit of the ph here, right? the unit of the ch number of ch in one molecule equals to the more mass over the more mass of the ch so it's 104 .14 over 13 and that's equal to 8 so the formula of the structure is actually ch 8 like this so look at the question how many each atoms are present in a 2 .2 grams of styrene.
01:14
So we're going to calculate how many c .h.
01:19
How many mores of c .h.
01:20
That is, right? so let's see, the mores of the c .h.
01:26
Equals to the mass over the more mass of the c .h...
