The grams to moles chemistry app teaches students new to chemistry how to convert grams of a compound to moles of a compound, moles of a compound from grams of a compound, and to calculate the Molar Mass of a compound from the chemical formula of the compound. There is an element symbol look-up table, an element list by atomic number and a really cool periodic table with element information in a convenient pop-up. The conversion calculations are based on the unit factor method of unit conversions which is helpful more generally. grams to moles will also be useful for experienced chemists as a chemistry calculator and periodic table reference tool. A free version of this app, grams to moles free, that contains iAd banners can also be downloaded separately.