HCl(aq)+NaOH(aq)→NaCl(aq)+H2O(l)Calculate ΔHrxn for the reaction at 3 different concentrations of HCl as listed in the image provided. Please state how the concentration of acid affect the heat of reaction (ΔHrxn)between a strong acid (HCl) and a strong base(NaOH)? Table 1: Trial DataMass of cups (g)3.509Volume of HCI (mL)50Volume of NaOH (mL)NaOH concentration (M)500.955Initial temperature of compounds (°C)17.75Trial #1Trial #2Trial #3HCl concentration (M)0.9230.6920.462Final temperature of compounds (°C)Mass of solution (kg)AT (°C)Energy/q (kJ)Change in enthalphy/AHrxn (kJ/mol)24.322.821.20.1032550.101990.1021346.555.053.353.572.151.43

Answered: Image /qna-images/answer/55b7b270-33ae-4ca1-82bc-8bf556e7fb5c.jpg

Table 1: Trial Data Mass of cups (g) Volume of HCI (mL) Volume of NaOH (mL) NaOH concentration (M) 3.509 50 50 0.955 Initial temperature of compounds (°C) 17.75 Trial #1 Trial #2 Trial #3 HCl concentration (M) 0.923 0.692 0.462 Final temperature of compounds (°C) Mass of solution (kg) AT (°C) Energy/q (kJ) Change in enthalphy/AHrxn (kJ/mol) 24.3 22.8 21.2 0.103255 0.10199 0.102134 6.55 5.05 3.35 3.57 2.15 1.43

Table 1: Trial Data Mass of cups (g) Volume of HCI (mL) Volume of NaOH (mL) NaOH concentration (M) 3.509 50 50 0.955 Initial temperature of compounds (°C) 17.75 Trial #1 Trial #2 Trial #3 HCl concentration (M) 0.923 0.692 0.462 Final temperature of compounds (°C) Mass of solution (kg) AT (°C) Energy/q (kJ) Change in enthalphy/AHrxn (kJ/mol) 24.3 22.8 21.2 0.103255 0.10199 0.102134 6.55 5.05 3.35 3.57 2.15 1.43

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 107QRT

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