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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: BAH0003 on July 04, 2019, 04:39:08 pm

Title: Formula Drawing Question
Post by: BAH0003 on July 04, 2019, 04:39:08 pm

Hi,

Had this question, if anyone can answer that would be great.

1. The semi-structural (condensed) formula for 4-methyl octane and 2,3-dimethyl pentane?

Thanks

Title: Re: Formula Drawing Question
Post by: Bri MT on July 04, 2019, 07:04:02 pm

For both of those questions you can follow this process:
1. Start with CH3
2. Count how many CH2s until something else happens and write the CH2s in
3. Write in the thing you encountered   (in this case a methyl group)
4. Repeat steps 2 and 3 until you hit the end of the molecule

You should get CH3(CH2)3CH3(CH2)3CH3 for the first one :)