Experiment7: To calculate the AH of reaction of NaNO3 in water using solution calorimeter, 0.5120g Tris (MM=121.14 g/mole) sample was added in to the calorimeter at 23.240°C, the temperature increased to 23.586°C. A sample of 0.2001g NaNO, was run in the same solution calorimeter, the temperature decreased from 23.647°C to 23.212°C. A) Calculate the AH.

Experiment7: To calculate the AH of reaction of NaNO3 in water using solution calorimeter, 0.5120g Tris (MM=121.14 g/mole) sample was added in to the calorimeter at 23.240°C, the temperature increased to 23.586°C. A sample of 0.2001g NaNO, was run in the same solution calorimeter, the temperature decreased from 23.647°C to 23.212°C. A) Calculate the AH.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter8: Thermochemistry

Section: Chapter Questions

Problem 88QAP: A sample of sucrose, C12H22O11, is contaminated by sodium chloride. When the contaminated sample is...

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9.83 A student performing a calorimetry experiment combined 100.0 mL of 0.50 M HCl and 100.0 mL of 0.50 M NaOH in a coffee cup calorimeter. Both solutions were initially at 20.0°C, but when the two were mixed, the temperature rose to 23.2°C. (a) Suppose the experiment is repeated in the same calorimeter but this time using 200 mL of 0.50 M HCl and 200.0 mL of 0.50 M NaOH. Will the T observed he greater than, less than, or equal to that in the first experiment, and why? (b) Suppose that the experiment is repeated once again in the same calorimeter, this time using 100 mL of 1.00 M HCl and 100.0 mL of 1.00 M NaOH. Will the T observed he greater than, less than, or equal to that in the first experiment, and why?
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The reaction SO3(g)+H2O(l)H2SO4(aq) is the last step in the commercial production of sulfuric acid. The enthalpy change for this reaction is 227 kJ. In designing a sulfuric acid plant, is it necessary to provide for heating or cooling of the reaction mixture? Explain.
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