CMM!
A must have for chemists and chemistry students!
This application calculate for you the molar mass of a chemical compound.
You also get a periodic table keyboard.
Just enter your formula in the first text field and click the "Calculate"
Here are some examples:
CH3COOH
(NH4)3PO4
CuSO4.5H2O
C6H12O6
You can also save your recurring formulas in a dedicated page.