A9.45g piece of an unknown metal at 470.8 °C is placed into a coffee cup calorimeter containing 84.6g of water at 8.7 °C. After the metal is added to the water the temperature of the water climbs to 13.2 °C. What is the specific heat of the metal in J/(g°C)? Note: the specific heat of water is 4.18 J/(g°C).
A9.45g piece of an unknown metal at 470.8 °C is placed into a coffee cup calorimeter containing 84.6g of water at 8.7 °C. After the metal is added to the water the temperature of the water climbs to 13.2 °C. What is the specific heat of the metal in J/(g°C)? Note: the specific heat of water is 4.18 J/(g°C).
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 109AE: A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g...
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Transcribed Image Text:D Question 7
When 1.64 g of an unknown salt, A2B3 is
added to a calorimeter containing 88 ml of
water at
25.3 °C the temperature change is 2.81 °C. In a
subsequent experiment the molar mass of salt
AB is determined to be 27.4 g/mole.
Determine the molar enthalpy.
mole
for the reaction.
Assume the salt completely ionizes in water,
that the density of the solution is 1.0 g/ml and
that the specific heat of the solution is the
same as that for water 4.18 J/(g°C)
Transcribed Image Text:A 9.45g piece of an unknown metal at 470.8 °C
is placed into a coffee cup calorimeter
containing 84.6g of water at 8.7 °C. After the
metal is added to the water the temperature of
the water climbs to 13.2 °C. What is the
specific heat of the metal in J/(g°C)?
Note: the specific heat of water is 4.18 J/(g®C).
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