00:01
So in this problem, we're asked basically to compare cyclopropane to regular propane.
00:08
Now, we're first asked about the empirical formula and how these would differ.
00:17
So first we might consider normal propane, which will have three hydrogens here, two hydrogens here, and three hydrogens here.
00:27
Whereas cyclopropane will have one hydrogen going up, one going down, one going up, one going down, one going down, one going up, one going down, leaving off the h's just so that it's a little bit more visible.
00:47
And so what we'll notice is that we have eight hydrogens on propane, but only six on cyclopropane because of an extra carbon carbon bond.
00:58
And so cyclopropane is c3h6 in an empirical formula, whereas regular propane is c3h8.
01:09
So it's down two hydrogens.
01:13
And the second part of the question, we're told that the three carbon atoms are necessarily in a plane, as we can see in the image of tron.
01:20
What are the different wedges means? so the shaded wedge means that the hydrogen is above the plane or out of the paper, and the dashed wedge means that the hydrogen is below the plane or into the paper.
01:43
So all of the hydrogens in cyclopropane are anti -peri -planar to each other and not planar with the carbons...