3 structural isomers can be drawn to represent the chemical formula C5H12.
When two or more organic compounds have the same molecular formula but different structures, they are said to be structural isomers, also referred to as constitutional isomers. The two molecules below share the same chemical formula, however they are distinct due to variations in the methyl group's placement.
It is an alkane, C5H12. There are 2 to the power (n-4)+1 isomers of an alkane, where n is the number of carbon atoms. Therefore, there are three structural isomers that might exist for C5H12 using the formula. They are methyl butane, n-pentane, and isopentane (dimethyl propane).
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