Butane has one chemical formula C4H10 and exactly two structural formulas (shown at the right). One is a chain shape and the other is a T-shape. Viewed from a different angle you might be fooled into thinking there are more than these 2 possible configurations (e.g. |- is the same as -| and \/\ is the same as /\/ etc). Using the virtual isomer constructor (or classroom molecular modelling kit) you will assemble and discover the unique structural formula isomers of pentane C5H12 - (3), hexane C6H14 - (5), and heptane C7H16 - (9). Just sketch the carbon chains only, ignoring the hydrogens. HINT: The 2 butane isomers at the right will become the basic building blocks for determining the 3 pentane isomers. The 3 pentane isomers will then become the basic building blocks for determining the 5 hexane isomers. Lastly, the 5 hexane isomers will then become the basic building blocks for determining the final 9 heptane isomers.

VIRTUAL ISOMER LAB LINK

Conclusion:
Finally, update your website with the details of this lab experience including a short descriptive summary and problems you encountered. Make (and turn into the instructor) a sketch off ALL 17 isomers (organized into familiar types). The web component will be gradeded according to this rubric.