Calculating specific heat capacity


Assignment:

Assume you use calorimetry to calculate the specific heat capacity of a 125.24 g piece of unknown metal. You intially heat the metal to 100.0 °C in boiling water. You then drop the chunk of metal into a calorimeter containing 47.22 g of water at 19.7 °C. After closing and stiring the calorimeter thoroughly, the metal and water both come to equilibrium at a temperature of 27.6 °C.

Q1. What is the temperature change of the water?

  • 100.0 °C
  • 19.7 °C
  • 7.9 °C

Q2. What is the temperature change of the metal?

  • -72.4 °C
  • 125.2 °C
  • -27.6 °C

Q3. How much heat was gained by the water? (calculate the qwater)

  • 33.1 J
  • 1561 J
  • 418.4 J

Q4. Knowing the above, what must qmetal?

  • -33.1 J
  • -1561 J
  • -125240 J

Q5. Then what must the the Specific Heat of the metal be?

  • 0.4184 J/g°C
  • 25.00 J/g°C
  • 0.1721 J/g°C

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Chemistry: Calculating specific heat capacity
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