TogoPogo Posted April 19, 2012 Report Share Posted April 19, 2012 I'm currently working on an organic chemistry assignment where we are told to explore all 12 functional groups of organic compounds. I'm stuck as to how to give the general molecular formula for these 12 (alkane, alkene, alkyne, alcohol, ether etc), so could anybody help me out? Any help is appreciated. This is what I have so far and I'm sure there are some mistakes. n = subscript for the number of atoms.Alkane - C(n)H(2n+2)Alkene - C(n)H(2n)Alkyne - C(n)H(2n-2)Alcohol - C(n)H(2n-2)OHEther - C(n)H(2n+2)OAldehyde - C(n)H(2n+1)COHKetone - C(n)H(2n)O <---- should the O be somewhere in the middle of the formula since it is a ketone?Carboxylic acid - C(n)H(2n-1)COOHEster - C(n)H(2n+2)COOAmine (primary) - C(n)H(2n+1)NH2Amide - C(n)H(2n+2)CONHAlkyl Halide - C(n)H(2n+1)X, X = any halogen (F, Cl, Br, I)Thanks! Reply Link to post Share on other sites More sharing options...
omri Posted April 22, 2012 Report Share Posted April 22, 2012 (edited) Ketone C(3+n)O(n)H(6+2n) By the way, I'm sure this is really find to, just google general formulas for organic homologous series Edited April 22, 2012 by omri Reply Link to post Share on other sites More sharing options...
Drake Glau Posted April 25, 2012 Report Share Posted April 25, 2012 Alkynes are not in the curriculum. They weren't for 2011 at least... Neither were ethers I think O.o You have all of them as far as I can tell since you don't do cyclic molecules either. An ester isn't always going to end with OO. The general idea is RCOOCR, you can have more stuff on either side of the ester group. That's all I found to say stuff about Reply Link to post Share on other sites More sharing options...
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