A 12.30-g block of solid gold at 63.62 °C is immersed in a 23.29-g pool of liquid ethanol with a temperature of 12.25 °C. When thermal equilibrium is reached, what is the temperature of the gold and ethanol?
Specific heat capacities: gold = 0.129 J/g °C; ethanol = 2.44 J/g °C
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