The maximum # of stereoisomers that are possible for a given molecule can be determined from the formula, 2^n, where n is the nubmer of stereocenters in the molecule.
a) Using this formula, what is the maximum # of stereoisomers that could exist for 1,2-diaminocyclohexane?
b) Why are there only three stereoisomers of 1,2-diaminocyclohexane rather than the number you calculated in part A?