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Aparticular ring contains both 18 k gold and sterling silver, with the two metals in an intricate design resembling braided ropes. the total mass of the ring is 15.0 g, and a jeweler wants to determine the masses of gold and of silver present. the clever jeweler places the ring into some hot water, heating it to a temperature of 87.6°c, and then drops the hot ring into 18.0 g of water at 21.8°c. when the ring and the water reach thermal equilibrium, the final temperature is 24.0°c. what mass of gold is present in the ring?
specific heats: 18 k gold: 0.132 j g–1 °c–1 sterling silver: 0.245 j g–1 °c–1 water: 4.184 j g–1 °c–1
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