The British gold 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 the sovereign in kilograms using the fact that the number of karats = 24 ✕ (mass of gold)/(total mass). ?kg (b) Calculate the volumes of gold and copper, respectively, used to manufacture the coin. volume of gold ? m3 volume of copper ?m3 (c) Calculate the density of the British sovereign coin. ?kg/m3

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