measuring the masses of copper and oxygen in copper oxide we will determine its empirical formula. Equipment and Materials Solid copper oxide, zinc metal in a hydrogen-generator bottle with thistle tube, 3 M sulfuric acid, a large test tube, a small test tube, two beakers (100 mL), Bunsen burner, calcium sulfate in a drying tube.
Prepared most easily by the reaction of basic copper(II) compound with a sulfuric acid solution (100-200 g/l sulfuric acid); and copper metal, sulfuric acid and air the most common starting materials for the production of copper sulfate pentahydrate.
The zinc displaces the copper in the copper sulfate: Zn + CuSO4 = ZnSO4 + Cu. Change in Free Energy: ΔG (20C) = -206.6kJ (negative, so the reaction runs) Change in Enthalpy: ΔH (20C) = -208.8kJ (negative, so the reaction is exothermic) 6.9K views. ·.
Formula and structure: The cupric sulfate chemical formula is CuSO 4. Its molar mass is 159.609 g mol-1. It can be found as an anhydrous or most commonly, as a pentahydrated salt of CuSO 4.5H 2 O, which has a molar mass of 249.685 g mol-1.
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