Answer the question below, relating your answers only to salts in the following list :
Sodium chloride, anhydrous calcium chloride, copper sulphate-5-water ?
(a) What name is given to the water in the compound copper sulphate-5-water ?
(b) If copper sulphate-5-water is heated, anhydrous copper sulphate is formed. What is its colour ?
(c) By what means, other than heating, could you dehydrate copper sulphate-5-water and obtain anhydrous copper sulphate ?
(d) Which one of the salts in the given list is deliquescent ?
(b) From the list of substances given below, choose the pair required to prepare the salts (i) to (iii) in the laboratory and write down the relevant equations. The substances are chlorine, iron, lead, lead nitrate solution, sodium nitrate solution, iron (III) carbonate, lead carbonate, iron (III) hydroxide, sodium hydroxide solution and dilute hydrochloric acid. The salts are (i) sodium chloride. (ii) lead chloride. (iii) anhydrous iron (III) chloride.