This lesson covers solved numerical problems on molarity, molality, mole fraction, and percentage concentrations to help you ...

Both molarity and molality are measures of a chemical solution’s concentration. The primary difference between the two comes down to mass versus volume. The molality describes the moles of a solute in ...

Today, October 23, is Mole Day -- the unofficial holiday when we celebrate Amedeo Avogadro and his contributions to molecular theory. In 1811, Avogadro hypothesized that given two volumetrically ...