# How many isomers have the formula C3H8?

...the straight chain alkane....${H}_{3} C - C {H}_{2} C {H}_{3}$...on the other hand, saturated butane, ${C}_{4} {H}_{10}$, can generate 2 isomers, and pentane, ${C}_{5} {H}_{12}$, can generate 3 isomers. And hexanes can generate 5 isomers. As the chain length grows, the number of isomers multiply substantially...