A coffee-cup calorimeter contains 30 mL of water with an initial temperature of 24.8°C. An unknown sample with a mass of 12.618 grams was placed inside making the water temperature rise up to 25.5°C. The initial temperature of the metal was 79.9°C. (Water: density = 1g/mL; specific heat = 4.184 J/g-°C).  What is the specific heat (J/g-°C) of the unknown sample?

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A coffee-cup calorimeter contains 30 mL of water with an initial temperature of 24.8°C. An unknown sample with a mass of 12.618 grams was placed inside making the water temperature rise up to 25.5°C. The initial temperature of the metal was 79.9°C.

(Water: density = 1g/mL; specific heat = 4.184 J/g-°C). 

What is the specific heat (J/g-°C) of the unknown sample?

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