Obtaining solid from a mixture
A mixture contains ammonium chloride, copper (ii) oxide and sodium chloride. Describe how each of the substances can be obtained from the mixture.(5marks)
Suggested resposponses
Heat the mixture; ammonium chloride sublimes and is collected as a sublimate; leaving sodium chloride and copper (ii) oxide, add water to the mixture and stir; filter to obtain copper (ii) oxide as the residue and sodium chloride solution as a filtrate; evaporate the filtrate to saturation to obtain the...
