Homework Help: physics

Posted by anon on Monday, February 4, 2013 at 11:05am.

The British Sovereign coin is an alloy of gold and copper having a total mass of 7.988 g and is 22-karat gold.
(a) Find the mass of gold in kg using that # of karats = 24 x (mass of gold)/(total mass).
(b) Calculate the volumes of gold and copper used to manufacture the coin.
(c) Calculate the density of the coin.

physics - bobpursley, Monday, February 4, 2013 at 11:35am
a. calculate using the formula
b. knowing the masses of copper and gold, and densities, find the volume
c. density=totalmass/totalvolume

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