2. Describe Your Observations Of The Solution During The Reaction. 9. Describe The Appearance Of The Solution And Any Solids After The Reaction. Describe The Appearance Of The Solid After It Is Dried. I recently did an experiment putting pieces of $\ce{Al}$ and $\ce{Fe}$ into copper(II) sulfate solution and I noticed when the piece of aluminium was reacting, tiny bubbles were coming out whereas with the piece of iron this didn't happen. But in the case of copper sulfate, this doesn’t happen. The object of this experiment is to find experimentally the mole ratio existing in the reaction between aluminum metal and copper (II) sulphate. Students add aluminium cooking foil to copper(II) sulfate solution and observe no reaction. There are other cases where a zero-valent metal may react with a salt of the same metal - for example, copper will reduce cupric chloride in solution. Copper sulfate is highly soluble in water, with solubility values of 1.055 molal and 1.502 molal ate 10 o C and 30 o C respectively. When the blue Copper (II) Sulphate solution and grey Aluminum react, fizzing starts, and a colorless gas is released. Describe the appearance of the copper(II) sulfate solution and the aluminum foil before the reaction starts. In the first part, you will react a piece of aluminum foil with an excess of copper (II) sulphate solution to produce copper metal. The experiment has two distinct parts. 1. 5.6 Reduction of Cu 2+ by Aluminum. Copper II sulfate and aluminum react very slowly because aluminum is coated with a very thin layer of tarnish (aluminum oxide). Describe The Appearance Of The Copper(II) Sulfate Solution And The Aluminum Foil Before The Reaction Starts. Uses of Copper Sulfate 7. A typical example of a single displacement reaction where one metal displaces another is the reaction between iron and copper sulfate, given by the reaction Fe + CuSO 4 → FeSO 4 + Cu. Then sodium chloride is added and dissolved. Subjects: Oxidation/Reduction, Net ionic equations. Description: When a ball of aluminum foil is placed in a copper solution with chloride ions, the copper ions are reduced to copper metal and a coating of copper is seen on the surface of the aluminum. Lesson organisation. A vigorous displacement reaction occurs and the solution gets very hot, aluminium dissolves and red copper is visible. 10. 8. No. The grey solid disappears and a brown insoluble solid is formed. This reaction can be sped up if the layer of aluminum oxide is removed or compromised. Adding salt does this and allows electrons from the aluminum to react with the copper ions in the solution, causing them to become copper metal.