Problem:
What is the % water in Copper(II)Sulfate Pentahydrate?
Procedure:
1. Mass out 2.0 grams or Copper(II) Sulfate Pentahydrate in an evaporating dish
2.Using a heating stand gently heat material untill instructed to stop.
3.Allow dish to cool
4. Find the mass of dish+Anhydrous Salt.
Picture:
Label all parts of your diagram.
Data:
1. Mass of evaporating dish = _______ g
2. Mass of evaporating dish+copper(ll) sulfate pentahydrate = _______g
3. Mass of Evaporating dish + Anhydrous copper sulfate = _______g
Calculations:
1. Find mass of copper(II) sulfate pentahydrate = _______g
2. Find the mass of the water lost = _______g
3. Find the % of water in Copper(II) sulfate Penta Hydrate = _______%
Theoretical Value:
% H2O = (part/whole) x 100
Safty Notes:
1. Wear Safty glasses
2. Wear an apron
3. Dont burn yourself!!
Conclusion:
1. What did you figure out the % water in the crystals to be?
2. What is the theoretical % water in the crystal?
3. Determine the percent water in barium chloride dihydrate
4. Determine the percent water in copper(II) nitrate trihydrate
5. Determine the percent water in sodium carbonate decahydrate