GCSE practical 14 Exothermic or endothermic

GCSE practical 14 Exothermic or endothermic :

HazCard : 9A, 16, 27C,47A,59A, 91A, 95A, 107

• Boiling tubes and rack

• Thermometers 100oC

• 25cc measuring cylinder

• 10cc measuring cylinder

• at least 2 bottles/Beakers with spatulas of :

  • HCl 2.0M 50cc per groups

  • Mg ribbon 1 X 3 cm piece sper group

  • NaHCO3 solid 1 spatula per group

  • CUSO4 1.0M 20cc per group

  • Zn powder 2 Spatulas per group

  • NaOH 0.4M 20cc per group

  • NH4Cl solide 1 Spatula per group

  • Ca granules 1 granule per group + tweezers

  • Waste conical flask for waste metal

Waste metals should not go down the sinks. a waste receptacle (Sieve into a large beaker or jug) can work well

Student should only handle Ca with tweezers