Short description of Chemical Reagent Calculator 3.0: CHEMICAL REAGENT CALCULATOR is a useful tool to assist technicians and laboratory staff who needs to prepare chemical solutions and reagents. The program uses built in atomic weights in calculating the procedure for preparing Molar solutions, as well as Anhydrous and Hydrate solutions. Calculating percentage solutions is also included. The program allows the user to print out instructions as well as a label to fix to the preparation.