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A 12.88-g block of solid platinum at 61.54 °C is immersed in a 21.78-g pool of...

A 12.88-g block of solid platinum at 61.54 °C is immersed in a 21.78-g pool of liquid ethanol with a temperature of 13.43 °C. When thermal equilibrium is reached, what is the temperature of the platinum and ethanol? Specific heat capacities: platinum = 0.133 J/g °C; ethanol = 2.44 J/g °C

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