In this lab, students will remove the water from copper (II) sulfate pentahydrate by heating and determine the empirical formula. This is appropriate for all levels of chemistry. The lab requires bunsen burners, rings, ring stands, crucibles, crucible tongs, and balances. Data can be collected and most of it analyzed in a single 45-50 class period. Includes teacher instructions, sample calculations, and a key to the conclusion questions.
The introduction to this lab introduces students to hydrates and anhydrous salts.
Keywords: experiment, chemistry, moles, stoichiometry, empirical formulas, percent composition, atoms, molecules, formula units, hydrate, anhydrous.