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A-13
3.
If the filtrate in Part II was a clear, dark blue solution, explain how and why the percent
recovery of copper(II) carbonate solid would be affected.
4.
A 5.897 g sample of an ore that contains copper metal is treated with nitric acid followed by the
addition of sodium carbonate, using a procedure similar to the one described in Parts I and II of this
experiment. A mass of 2.235 g of copper(II) carbonate was obtained from this procedure.
Calculate the mass percent copper in the original ore sample.
ASSESSMENT
Performance
(1.0 mark):
Observations Sheet
(1.0 mark):
Copper(II) Sulfate crystals
(2.0 marks):
Laboratory Quiz
(6.0 marks):
