When pure sulfuric acid is dissolved in water, heat is evolved. 10.65 g of pure sulfuric acid at 20.00 °C was added to a calorimeter containing 300 g of water at 20.00 °C. The temperature of the solution increased to 26.35 °C. If the specific heat of the mixture is 4.184 J g1 °C-1, the density of water is 1 g/mL, and the heat capacity of the calorimeter is ignored, what is the heat evolved per mole of sulfuric acid? a. -78.4 kJ b. -83.2 kJ C. -73.6 kJ O d. -80,8 kJ
When pure sulfuric acid is dissolved in water, heat is evolved. 10.65 g of pure sulfuric acid at 20.00 °C was added to a calorimeter containing 300 g of water at 20.00 °C. The temperature of the solution increased to 26.35 °C. If the specific heat of the mixture is 4.184 J g1 °C-1, the density of water is 1 g/mL, and the heat capacity of the calorimeter is ignored, what is the heat evolved per mole of sulfuric acid? a. -78.4 kJ b. -83.2 kJ C. -73.6 kJ O d. -80,8 kJ
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 27E: The addition of 3.15 g of Ba(OH)28H2O to a solution of 1.52 g of NH4SCN in loo g of water in a...
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Transcribed Image Text:When pure sulfuric acid is dissolved
in water, heat is evolved. 10.65 g of
pure
sulfuric acid at 20.00 °C was
added to a calorimeter containing
300 g of water at 20.00 °C. The
temperature of the solution increased
to 26.35 °C. If the specific heat of the
mixture is 4.184 Jg1 °C1, the density
of water is 1 g/mL, and the heat
capacity of the calorimeter is
ignored, what is the heat evolved per
mole of sulfuric acid?
а. -78.4 kJ
b. -83.2 kJ
с. -73.6 kJ
d. -80.8 kJ
O e. -76.0 kJ
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