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Hydrate Lab using Copper (II) Sulfate. By :Brenda Hayes

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Brenda Hayes

on 28 May 2015

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Transcript of Hydrate Lab using Copper (II) Sulfate. By :Brenda Hayes

Background:
The percentage of water in the Copper(II) Sulfate is found by using the weight of the water lost and the Copper (II) Sulfate weight multiplied by 100.
Materials:
Crucible and cover
Clay triangle
Bunsen burner
Matches
tongs
1.00g of Copper(II) Sulfate
Watch glass
Distilled water
Procedure:
Clean and dry instruments
Put the crucible and cover on the clay triangle.
Heat the crucible and cover in the hottest part of the flame for five minutes. Make sure the crucible and cover glow a dull red color.
Let the crucible and cover cool for fifteen minutes.
Using tongs, move the crucible and cover to the watch glass and weigh them to the nearest .001g
Add 1g of the CuSO4*5H2O to the crucible and cover the crucible and weigh it again to the nearest .001g
Place the crucible on the clay triangle with the cover slightly opened and heat it lightly for fifteen minutes.
Let the crucible cool until it is room temperature.
Transfer it to the watch glass and weigh it again to the nearest .001g
Reheat for five minutes and let it cool again, and weigh it again
Repeat
Record and calculate results for the percentage of water in the Copper (II) Sulfate.
Hydrate Lab using Copper (II) Sulfate. By :Brenda Hayes
Purpose:
To determine percentage of water in Copper (II) Sulfate.
Results of the lab:
Mass of the empty crucible and cover:
Mass of dish and Copper (II) Sulfate before heating:
Mass of Copper (II) Sulfate:
Mass of dish and Copper (II) Sulfate after heating:
Mass of dish and Copper (II) Sulfate after second heating:
Mass of Copper (II) Sulfate after heating:
For the mass of the Copper (II) Sulfate subtract the Mass of the empty crucible and cover from the mass of the dish and the Copper (II) Sulfate before heating .
For the mass of the Copper (II) Sulfate after first heating subtract the mass of the empty crucible and cover from the mass of the dish and copper (II) Sulfate after heating.
For the mass of the Copper (II) Sulfate after the second heating subtract the mass of the empty crucible and cover from the mass of Copper (II) Sulfate after heating.
Write the formula for the reaction:
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