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03-30-2008, 12:55 AM
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| chemistry stoiciometry help please!?
A mixture of Cu(NO3)2 and Cu(NO3)2.2.5H20 has a mass of 3.150 g. Upon heating the water is driven off and the mass of the Cu(NO3)2 is 2.853 g. Determine the % by weight of the Cu(NO3)2.2.5H20 in the original mixture.
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