6.) Calculate the molality of the solution (m) Use the equation: Tf (solution) – Tf (solvent) = –i Kf m The freezing point of pure water is 0.00 °C Kf for water is 1.86 °C/m
6.) Calculate the molality of the solution (m) Use the equation: Tf (solution) – Tf (solvent) = –i Kf m The freezing point of pure water is 0.00 °C Kf for water is 1.86 °C/m
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...
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Question
6.) Calculate the molality of the solution (m)
Use the equation:
Tf (solution) – Tf (solvent) = –i Kf m
The freezing point of pure water is 0.00 °C
Kf for water is 1.86 °C/m
![5.8871
Mass Nacl (g)
100.0
2.
Volume of water (mL)
51.5023
3.
Mass ice (g)
-2.85
Freezing point of the
4.
solution ('C)
Part 1 Calculations
What is the predicted value of i for NaCi?
For electrolytes, assume i = the number of
ions per formula unit.
//
Calculate the molality of the solution (m)
Use the equation:
6.
T; (solution) - T; (solvent) = -i K, m
The freezing point of pure water is 0.00 C
K, for water is 1.86 "C/m
//
Mass of solvent in grams
Add together the masses of the liquid water
and ice added to the calorimeter. Convert
the volume of liquid water to mass using
1.000 g/ml as the density of water (see
procedure for volume used).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9c10e4f5-e278-4bd7-8092-f6a430c865ac%2F32fdd9a5-215d-4833-b2e9-f5edeac1d2ed%2F9le6pvp_processed.png&w=3840&q=75)
Transcribed Image Text:5.8871
Mass Nacl (g)
100.0
2.
Volume of water (mL)
51.5023
3.
Mass ice (g)
-2.85
Freezing point of the
4.
solution ('C)
Part 1 Calculations
What is the predicted value of i for NaCi?
For electrolytes, assume i = the number of
ions per formula unit.
//
Calculate the molality of the solution (m)
Use the equation:
6.
T; (solution) - T; (solvent) = -i K, m
The freezing point of pure water is 0.00 C
K, for water is 1.86 "C/m
//
Mass of solvent in grams
Add together the masses of the liquid water
and ice added to the calorimeter. Convert
the volume of liquid water to mass using
1.000 g/ml as the density of water (see
procedure for volume used).
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