Login or Sign Up

Ask a New Question

A mixture contain ammonium chloride,copper(II) oxide and sodium chloride.describe how each of the substance can be obtained from the mixture

This can be done but with some difficulty. Place the mixture in a container and heat. The NH4Cl will vaporize and the vapors should be passed over a cool surface in order to condense the vapors. The two remaining substances are placed in water where the NaCl will dissolve. Filter the mixture and the copper (II) oxide will be held back on the filter paper while the solution will pass through. Then boil away the water to leave the NaCl solid by itself. The hard part of this procedure is setting up the apparatus so that the NH4Cl vapors can be colleced on a cool surface.

Did you know?

Did you know that ammonium chloride, copper(II) oxide, and sodium chloride can be obtained from a mixture? To obtain ammonium chloride, the mixture can be heated. The heat causes ammonium chloride to sublime, which means it goes from a solid to a gas without passing through the liquid phase. The gas can then be cooled down and collected as a solid. To obtain copper(II) oxide, the mixture can be dissolved in water. By adding sodium hydroxide to the solution, a precipitate of copper(II) hydroxide is formed. This precipitate can then be heated, which leads to the decomposition of copper(II) hydroxide into copper(II) oxide and water. Lastly, to obtain sodium chloride, the remaining solution from the previous step can be evaporated. As water evaporates, sodium chloride crystals will form and can be collected. Through these simple processes, each substance in the mixture can be obtained separately, showcasing the versatility of chemistry in separating and obtaining different components.