vRecord all weights to 0.001g.
vWeigh 25 ml
of CuxCly solution, use exact density to calculate exact
volume, then calculate the mass of CuxCly.
vDo not use metal forceps or spatulas when stirring
solution.
vAdd Al foil until blue color is gone, allow
excess foil to dissolve also.
vAllow container to cool before weighing.
vSpeed up cooling by placing in front of hood sash raised
4-6Ó.