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OpenStudy (anonymous):
A sample of nickel is heated to 99.8 degrees C and placed in a coffee-cup calorimeter containing 150.0 g water at 23.5 degrees C. After the metal cools, the final temp of metal and water mixture is 25.0 degrees C. If the specific heat capacity of nickel is 0.444 J/degree C g, what mass of nickel was originally heated? Assume no heat loss to the surroundings.
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