0.700 moles of an unknown solid is placed into water to make 150.0 mL of solution. The solution's temperature decreases by 8.51 °C. Calculate AH, in kJ/mol, for the dissolution of the unknown solid. (The specific heat of the solution is 4.184 J/g. °C and the density of the solution is 1.02 g/mL).
0.700 moles of an unknown solid is placed into water to make 150.0 mL of solution. The solution's temperature decreases by 8.51 °C. Calculate AH, in kJ/mol, for the dissolution of the unknown solid. (The specific heat of the solution is 4.184 J/g. °C and the density of the solution is 1.02 g/mL).
Chemistry
10th Edition
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...
Related questions
Question
Transcribed Image Text:0.700 moles of an unknown solid is placed into water to make
150.0 mL of solution. The solution's temperature decreases by
8.51 °C. Calculate AH, in kJ/mol, for the dissolution of the
unknown solid. (The specific heat of the solution is 4.184 J/g.
°C and the density of the solution is 1.02 g/mL).
Expert Solution
Step 1: Calculate the heat (q) absorbed or released during the temperature change.
Answer :--
Using the formula for heat (q) is :-
q = m⋅C⋅ΔT
m (mass of the solution) = ρ⋅V (density × volume)
C (specific heat capacity of the solution) = 4.184 J/g·°C
ΔT (temperature change) = 8.51°C
Now, substitute the values are :-
q = 153.0g × 4.184J/g⋅°C × 8.51°C
= 5447.69J
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY