50.0 mL of 1.45 mol/L NaOH and 50.0 mL of 1.45 mol/L HA are added to a coffee cup calorimeter, and the mixture was allowed to reach thermal equilibrium. Determine ΔrH°, in units of kJ mol–1, using the following data collected and assumptions made: The initial temperatures of both solutions were 24.00°C The final temperature of the mixture was 27.82°C Assume that the density and specific heat of the mixture is the same as that of water
50.0 mL of 1.45 mol/L NaOH and 50.0 mL of 1.45 mol/L HA are added to a coffee cup calorimeter, and the mixture was allowed to reach thermal equilibrium. Determine ΔrH°, in units of kJ mol–1, using the following data collected and assumptions made: The initial temperatures of both solutions were 24.00°C The final temperature of the mixture was 27.82°C Assume that the density and specific heat of the mixture is the same as that of water
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Sodium hydroxide reacts with a monoprotic weak acid HA according to the following balanced
NaOH(aq) + HA(aq) → NaA(aq) + H2O(l) ΔrH° = ?
50.0 mL of 1.45 mol/L NaOH and 50.0 mL of 1.45 mol/L HA are added to a coffee cup calorimeter, and the mixture was allowed to reach thermal equilibrium. Determine ΔrH°, in units of kJ mol–1, using the following data collected and assumptions made:
- The initial temperatures of both solutions were 24.00°C
- The final temperature of the mixture was 27.82°C
- Assume that the density and specific heat of the mixture is the same as that of water (0.9970 g/mL, 4.184 J g–1 °C–1)
- Assume that no heat is lost to the surroundings.
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