# 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 x (mass of gold)/(total mass). (b) Calculate the volumes of gold and copper, respectively, used to manufacture the coin. (c) Calculate the density of the British sovereign coin.

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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 x (mass of gold)/(total mass). (b) Calculate the volumes of gold and copper, respectively, used to manufacture the coin. (c) Calculate the density of the British sovereign coin.

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Step 1

Given:

Total mass of British sovereign coin = 7.988 g

Gold karat in coin = 22 karat.

Step 2

Part a)

The mass of gold is given as,

Step 3

Part b)

Density of copper = 8.95 g/cm3. = 8950 kg/m3.

Density of gold = 19.32 g/cm3. = 19320 kg/m3...

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