8. Write the structural formulas of both isomers with the formula C2H6O. Label the functional group of each isomer.

1. There are five structural isomers for hexane, C6H₁4. Draw the five structures using simplified structural formulae. For example, one of the isomers of butane, C4H₁0, could be drawn as CH3CH₂CH₂CH3. Use the same sort of format for the other questions on this page. 2. STRUCTURAL ISOMERISM 3. Draw as many structural isomers as possible for C3H8O. Draw as many structural isomers as you can for CH₂0 containing a benzene ring. 4. Draw as many structural isomers as you can for C4H8O₂ containing the group

C5H12 has 3 structural isomers C6H14 has 5 structural isomers C7H16 has 9 structural isomers. I get what a structural isomer is, but when I see a statement like the 3 statements above, I wonder if there is a way I can figure out how many structural isomers something has?  I'm in CHEM 2.  We didnt talk about that but when I see a slide he has telling me this, and I am wondering what to take from the slide...hmmm.

when looking at the name of a molecule the suffix tells you whether there are any double or helpful in answering questions on the subsequent pages. triple bonds in the molecule and the root tells you how many carbon atoms are present. Your instructor will guide you as you fill in the following table. The information in this table will be Note the suffix in each of the following functional groups: Alkanes have only ● • Alkynes have Alkenes have 1 Note the root associated with each of the following number of atoms: # of Carbons Example 2 bonds between carbon atoms. bonds between at least two of the carbon atoms. bonds between at least two of the carbon atoms. Root CH4 H Name this res charge! ~ 3 m ㅋ o bonds Can't be righ-