When a 13.3 g sample of NaOH(s) dissolves in 394.0 mL water in a coffee cup calorimeter, the temperature of the water changes from 22.8° C to 31.5°C. NaOH(s) -> Na+ (ag) + OH- (ag) Assuming that the specific heat capacity of the solution is the same as for water (4.184 J/g . °C) and the density of the solution is 1.030 g/mL, calculate the following. a. the heat transfer from system to surroundings (in J) b. AH for the reaction (in kJ) kJ

When a 13.3 g sample of NaOH(s) dissolves in 394.0 mL water in a coffee cup calorimeter, the temperature of the water changes from 22.8° C to 31.5°C. NaOH(s) -> Na+ (ag) + OH- (ag) Assuming that the specific heat capacity of the solution is the same as for water (4.184 J/g . °C) and the density of the solution is 1.030 g/mL, calculate the following. a. the heat transfer from system to surroundings (in J) b. AH for the reaction (in kJ) kJ

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 66QRT

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