1.6: Composition Last updated Save as PDF Page ID 375378 Michael J Blandamer & Joao Carlos R Reis University of Leicester & Faculdade de Ciencias 1.6.1: Composition- Mole Fraction- Molality- Concentration Chemists are particularly expert at identifying the number and chemical formulae of chemical substances present in a given closed system. Here we explore how the chemical composition of a given system is expressed. 1.6.2: Composition- Scale Conversions- Molality 1.6.3: Composition- Scale Conversion- Solvent Mixtures