2-Methylbutane. molecular model

Methylarbutin, synthesis of, 990 p-Methylbenzoic acid. pKa of, 760 2-Methylbutane. molecular model of, 80... 

Make a molecular ) model of one of the enantiomers of 2 methyl 1 butanol and the 1 bromo 2 methylbutane formed from it... 

What is lacking in these structures, however, is the three dimensionality of the molecule, which for 2-methylbutane is shown by the ball-and-stick molecular model in Figure 16.3(d). Depending on the purpose of the discussion, any of these representations can be used to describe the properties of the molecule. 

All three have five carbon atoms and 12 hydrogen atoms, so they have the molecular formula C5H12. However, as you can see, these models represent three different arrangements of atoms, pentane, 2-methylbutane, and 2,2-dimethylpropane. These three compounds are isomers. Isomers are two or more compounds that have the same molecular formula but different molecular structures. Note that cyclopentane and pentane are not isomers because cyclopentane s molecular formula is C5H10. 

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