A pure gold ring and pure silver ring have a total mass of 16.4g . The two rings are heated to 63.5 C and dropped into a 13.0 mL of water at 23.1 C. When equilibrium is reached, the temperature of the water is 25.2 C. What is the mass of gold ring? (Assume a density of 0.998 g/mL for water.) What is the mass of silver ring? (Assume a density of 0.998 g/mL for water.)