Chemistry homework help

Posted on 2014-01-16 17:50:00 in Chemistry by AIR.ICK.UGH

A bag contains a mixture of copper and lead BBs. The average density of the BBs is 9.80g/cm3 .



Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB.





2.A thief uses a bag of sand to replace a gold statue that sits on a weight-sensitive, alarmed pedestal. The bag of sand and the statue have exactly the same volume, 1.75L . (Assume that the mass of the bag is negligible.)

Calculate the mass of each object.

(density of gold = 19.3 g/cm3

density of sand = 3.00 g/cm3)

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