When a piece of gold with the temperature of 256 C, is added to 225 g of water, at a temperature of 20.0 C and the system is left to reach the therminal equilibrium, the final temperature of the system is 24.0 C. If the specific heat capacity of gold is 0.129 J/g•K and the specific heat capacity of water is 4.184 J/g•K. Calculate the mass of the gold.

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