Mekentosj BV has released Solutions
(http://mekentosj.com/iphone/solutions/), a scientific application
for the iPhone and iPod touch. It’s designed for making chemical
solutions in the lab or at school.

Solutions sports an user interface to calculate volume, weight, and
molarity on the basis of molecular weights. Enter a molecular formula
and Solutions calculates the Molecular Weight instantly. You can also
look up the molecular weight of almost any chemical using built-in
chemical database search engines.

It works on all iPhone and iPod touch models. Solutions is available
in the iPhone App Store for $2.99.