When 0.0700 moles of metal "X" is allowed to completely react with 200 mL of aqueous HCI, the temperature rises from 25.0 °C to 42.9 °C. Calculate AH in KILOJOULES per MOLE (kJ/mol) for the reaction written below, assuming that the heat capacity of the calorimeter is 776 J/°C, that the specific heat of the final solution is the same as that of pure water [4.18 J/(g°C)), and that the density of the solution is 1.00 g/ml. (note: The answer box only accepts numerical answers.do not include units of kJ/mol. Apply the correct sign to your answer, negative or positive.) X (s) + 2 HCI (aq) XCI2 (aq) + H2 (g) AHan- ??? kJ/mol

When 0.0700 moles of metal "X" is allowed to completely react with 200 mL of aqueous HCI, the temperature rises from 25.0 °C to 42.9 °C. Calculate AH in KILOJOULES per MOLE (kJ/mol) for the reaction written below, assuming that the heat capacity of the calorimeter is 776 J/°C, that the specific heat of the final solution is the same as that of pure water [4.18 J/(g°C)), and that the density of the solution is 1.00 g/ml. (note: The answer box only accepts numerical answers.do not include units of kJ/mol. Apply the correct sign to your answer, negative or positive.) X (s) + 2 HCI (aq) XCI2 (aq) + H2 (g) AHan- ??? kJ/mol

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 11QAP: When one mol of KOH is neutralized by sulfuric acid, q=56 kJ. (This is called the heat of...

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In a coffee-cup calorimeter, 1.60 g NH4NO3 is mixed with 75.0 g water at an initial temperature of 25.00C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.34C. Assuming the solution has a heat capacity of 4.18 J/C g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
In a coffee-cup calorimeter, 150.0 mL of 0.50 M HCI is added to 50.0 mL of 1.00 M NaOH to make 200.0 g solution at an initial temperature of 48.2C. If the enthalpy of neutralization for the reaction between a strong acid and a strong base is 56 kJ/mol, calculate the final temperature of the calorimeter contents. Assume the specific heat capacity of the solution is 4.184 J/g C and assume no heat Joss to the surroundings.
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