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A pure gold ring and pure silver ring have a total mass of 16.2 g. The two rings are heated to 64.8 C and dropped into 13.9 mL of water at 21.5 C. When equilibrium is reached, the temperature of the water is 23.5 C. Assume the density of 0.998 g/mL for the water. What is the mass of the gold ring?

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