How do I draw the condensed formula for:
1. 2-methyl-2-pentene
2. 5-methyl-1-hexene
3. 2,2,4,5-tetramethylhexane
4. propanoic acid
5. 2-pentyne
It is almost impossible to draw structural formulas on the boards. By the way, you should use the same name when making posts. It helps us avoid confusion. In addition, asking us to do 10 structural formulas is excessive. Here is how you do the first one. If you have a problem with any of the other nine, tell us what you don't understand about them and we can try to help with specific problems. You can post your response directly here without making a new question.
CH3
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C - CH3
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C - H
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CH2
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CH3
Check this out to make sure it is correct.
I would turn the structural formula above into a condensed formula this way.
(CH3)2C=CHCH2CH3
To draw the condensed formula for organic compounds, follow these steps:
1. Understand the compound's structure: Look at the name of the compound and identify the functional group(s) and the number and position of the substituents.
2. Identify the main carbon chain: Determine the longest continuous carbon chain in the compound. This chain will serve as the backbone for the condensed formula.
3. Number the carbon atoms: Assign numbers to the carbon atoms in the main chain, starting from the end that will give the substituents the lowest possible numbers. This is known as the parent chain.
4. Add substituents: Place the substituents on the appropriate carbon atoms and indicate their names. Use prefixes like methyl, ethyl, propyl, etc., to represent different substituents.
Now let's apply these steps to the compounds you mentioned:
1. 2-methyl-2-pentene:
- Identify the main chain: Pentene is a 5-carbon chain with a double bond.
- Number the carbon atoms: Start numbering from the end closest to the double bond.
- Add substituents: Place the methyl group on carbon 2.
Condensed formula: CH3CH(CH3)CH=CH2
2. 5-methyl-1-hexene:
- Identify the main chain: Hexene is a 6-carbon chain with a double bond.
- Number the carbon atoms: Start numbering from the end closest to the double bond.
- Add substituents: Place the methyl group on carbon 5.
Condensed formula: CH3CH2CH=CH(CH3)CH2CH3
3. 2,2,4,5-tetramethylhexane:
- Identify the main chain: Hexane is a 6-carbon chain.
- Number the carbon atoms: Start numbering from one end of the chain.
- Add substituents: Place the four methyl groups on carbons 2, 2, 4, and 5.
Condensed formula: (CH3)3CCH2CH(CH3)2
4. Propanoic acid:
- Identify the main chain: Propanoic acid is a 3-carbon chain with a carboxyl group (COOH) as the functional group.
- Number the carbon atoms: Start numbering from the end closest to the carboxyl group.
- Add substituents: The carboxyl group is placed on carbon 1.
Condensed formula: CH3CH2COOH
5. 2-pentyne:
- Identify the main chain: Pentyne is a 5-carbon chain with a triple bond.
- Number the carbon atoms: Start numbering from the end closest to the triple bond.
- Add substituents: There are no substituents in this case.
Condensed formula: CH3C≡CCH2CH3
By following these steps, you can draw the condensed formula for various organic compounds.