Question

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.

Answer 1

a. calculate using the formula
b. knowing the masses of copper and gold, and densities, find the volume
c. density=totalmass/totalvolume