1. (3 points) Consider three different compounds produced by plants: A and B and C. All three compounds have the same percent by mass composition and the same molar mass.

(a) Do the three compounds have the same empirical formula? Explain. (b) Do the three compounds have the same molecular formula? Explain. (c) Using the evidence provided and your answers from (a) and (b), explain how it is possible that A and B and C are all different compounds.