Resumen de A Known-to-Unknown Approach to Teach about Empirical and Molecular Formulas
Students learn better when relationships in chemistry (Unknown) are similar to life experiences (Known). The procedure used to determine empirical and molecular formulas of compounds may be illustrated by presenting problems associated with the composition of sums of money (number of different bills) a person may have. The atomic masses are analogous to values of different bills, the empirical formula mass to minimum amount of total money required to retain the ratio of bills, and the molar mass to the sum of money a person may have.
