A 88.5 –g piece of iron whose temperature is 78.8 0 C is place in  a beaker containing 244 g of water at 18.8 0 C. When thermal equilibrium is reached, what is the final temperature? (Assume no energy is lost to warm the beaker and its surroundings). Cp of water is 4.184 J/g0C and the Cp of iron is 0.446 J/g 0C.

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