Organic molecule formulas

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Organic molecule formulas

Postby Brandon_Goenawan2O » Fri Mar 17, 2017 1:19 pm


Does anyone know if we supposed to memorize all the general molecular formulas between alkanes, alkenes, alkynes, and all the cyclo structures?
Thanks in advance.

Dianna Grigorian 1C
Posts: 72
Joined: Wed Sep 21, 2016 2:55 pm

Re: Organic molecule formulas

Postby Dianna Grigorian 1C » Fri Mar 17, 2017 2:01 pm

I don't know if we necessarily have to memorize the general formulas, but it might help to be familiar for them.
For instance, alkanes have the form (C2nH2n+2)
Alkenes (C2nH2n)
Alkynes (C2nH2n-2)
I find that it is also helpful to draw out the structures if you are unsure and count the number of molecules there should be in order for carbon to have 4 bonds.
Hope this helps!

Aliya Habib 1L
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

Re: Organic molecule formulas

Postby Aliya Habib 1L » Fri Mar 17, 2017 6:28 pm

I think it's pretty important to know the formulas and how to name the longest carbon chain based on that.

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