1. Scale CuSO_4 1.05 g to 10.0 ml beaker of water
, stir 2. Pour 250 ml Flask
3. Prepare ethanol to 10.0 ml beaker
and flask 4. Heat a beaker of about 2.30 minutes.
5. Remove from the heat, pour into a flask ethanol mix
6. set the flask to cool, then soak them in ice crystals
7. Weigh the filter paper and glass clock 96.88 G
8. lead crystal that has gone. filter Wash with cold ethanol
9. Bake for 10 minutes to finish the filter
10. Let cool, then weighed to determine the weight crystals.
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