Chemistry Mole Concept Solution: Phenylenediamine (pictured below) is mainly used a...

Solution: Phenylenediamine (pictured below) is mainly used as a component of engineering polymers and composites. It is also an ingredient in hair dyes and is occasionally used as a substitute for henna. How many molecules are in a 2.00 g of phenylenediamine? a. 1.30 x 1028 b. 1.11 x 1022 c. 3.59 x 10-20 d. 3.07 x 10-24