Ch 2 coverage - not covering 2.9

[Robert Zellmer]

We are not covering section 2.9 (simple organic compounds) in lecture.  
You should
read it to get some idea of what organic compounds are (composed mostly 
of C and H,
with N, O, S, P and few other elements here and there).  We will not be 
naming them
in any formal way.  I have, and will, introduce you to organic compounds 
as we go
through other things.

Probably the most important thing to remember is the structure of these 
compounds
when you see a formula.  For example, in propane, CH3CH2CH3, the hydrogen
atoms connected to a carbon atom are written to the right of the carbon 
atom and are
not actually between the carbon atoms.  So the first C atom on the left 
has 3 H atoms
bonded to it and that C is also bonded to the C to it's right.  We 
haven't covered this yet
but keep in mind C forms 4 bonds and H forms 1 bond and you should put H 
(or F)
between two other atoms (H and F are always on the "outside" and not in 
the middle
between other atoms).  This applies to other atoms in the formula as 
well.  For example,
in CH2FCH2CH3, the F atom is on the first C on left (as are the 2 H 
atoms to the
right of that C atom) and not in between the two C atoms.

I have used as examples in class ethyl alcohol, ethanol, CH3CH2-OH, 
dimethyl ether,
CH3-O-CH3 and acetic acid, CH3CO2H, to show how to write and interpret 
the formulas.

Dr. Zellmer