Talk:High School Chemistry/Matter

The section where molecular mass units ("atomic mass units" or "daltons") is described appears misleading or at least confusing as it makes no mention of the standard unit for this (grams per mol). The stated mass for Gold (Au) is 197 (no units given) while according to a periodic table, the molecular weight of Au is 196.97 g.mol-1, so it seems that the unit of grams-per-mol should me (briefly?) introduced here.

124.197.10.173 (discuss) 11:11, 10 January 2012 (UTC) Cameron Kerr (Chemistry newbie)