Care should be taken when handling a hot flask or hot plate. The flasks will be reused, so the solution should not be disposed of. Cold bath - add ice to cold water in a large beaker or ...

50mL of 0.4M CoCl2 (or 95.2g CoCl2.H2O/L) 30mL of 30% hydrogen peroxide 3. At the start of lecture, set up a hot plate to about 135 oC. Place the potassium sodium tartrate in 600 mL beaker on the hot ...