a) Rank them according to increasing strain energy.\ ( 1 = "most stable" to 5 = "least stable")\ Hint: when you are having a difficult time deciding between 2 conformations, compare the number\ of eclipsed bonds.\

A

\ B\ C\

E

\ E\ A\ B\ C\ D\

D

\

E

\ The following are the space-filling models for the same 5 conformations of butane, but in a different order than that above.\ b) Rank these according to increasing strain energy.\ ( 1 = "most stable" to 5 = "least stable")\ A\ B\ C\ D\ E

The following are ball-and-stick models of 5 conformations of butane. a) Rank them according to increasing strain energy. ( 1 = "most stable" to 5 = "least stable") Hint: when you are having a difficult time deciding between 2 conformations, compare the number of eclipsed bonds. A D A B C D E The following are the space-filling models for the same 5 conformations of butane, but in a different order than that above. b) Rank these according to increasing strain energy. ( 1= "most stahle" to 5= "least stahle")