This wonderful little app has a chart for over 125 chemical forumlas and is great for professionals, students, or just anyone interested in chemisty and science.

(This is my first app so please give me your feedback at dfether2004@msn.com) this ebook has over 60 conversions, everthing from inches- centimeters to lightyears- parsecs, great for doctors, scientists, or just a rainy day. Happy conversions :)