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A 2.56g sample of anthracene C14H10, was burned to heat an aluminum calorimeter (mass= 948 g). The calorimeter contained 1.50 L of water with an initial temperature of 20.5oC and a final temperature of
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Sep 14, 2018
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A 2.56g sample of anthracene C14H10, was burned to heat an aluminum calorimeter (mass= 948 g). The calorimeter contained 1.50 L of water with an initial temperature of 20.5oC and a final temperature of 34.3oC.
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Given:
mass sample: 2.56g C14H10
mass of calorimeter: 948g
mass of water: 1.50g (assuming 1g/L density)
Ti = 20.5 C
Tf = 34.3 C
Solving for the total heat:
delta H(water) = 1.50 * 4.184 * (34.3 - 20.5)
= 86.61 J
Cstoltze
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Sep 18, 2018
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