Chemistry RPs

Question 1

chem: what is the method for the making salts required practical

Answer 1

1. measure 40 cm3 of sulfuric acid and put it in a 100cm3 beaker, set up a Bunsen burner, tripod, gauze and heatproof mat, put the beaker on the gauze and heat gently until almost boiling, turn off the burner
2. remove the beaker from the tripod and use a spatula to add a small amount of copper (II) oxide powder to the acid, stir with glass rod.
3. add more copper (II) oxide and stir again until the solution is blue and some of the copper (II) oxide does not react
4. set up a funnel and filter paper over the conical flask and filter the solution, place the filtrate in an evaporating basin
5. set up the water bath using the 250 cm3 beaker on the tripod and gauze evaporate the filtrate gently
6. when crystals begin to form pour the remaining solution into the crystalizing dish, leave it for 24 hours, remove crystals and pat dry between 2 pieces of filter paper