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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Please help me with the calculations, I want to make sure they are correct compared to what I got. Thank you so much!

Transcribed Image Text:Experiment 14 Report Sheet
Molar Mass of a Solid
Date
Lab Sec.
Name
Desk No.
A. Freezing Point of Cyclohexane (Solvent)
123.9799
5.3°C
1. Mass of beaker, test tube (g)
2. Freezing point, from cooling curve (C)
yes.
3. Instructor's approval of graph
B. Freezing Point of Cyclohexane plus Unknown Solute
Pam
Trial 1
Trial 2
Trial 3
Unknown solute no. am
(Part B.4)
(Parts B.1, B.3)
(Part B.5)
I
8.8519
0.ID04 0. 1029
132.63Dg
1. Mass of beaker, test tube, cyclohexane (g)
2. Mass of cyclohexane (g)
e1069
0.7°C
3. Tared mass of added solute (g)
4.7°C
2.2°C
4. Freezing point, from cooling curve (°C)
yes
5. Instructor's approval of graph
Calculations
1. k for cyclohexane (C kg/mol)
20.0
2. Freezing-point change, AT, ("C)
3. Mass of cyckohexane in solution (kg)
4. Moles of solute, total (mol)
5. Mass of solute in solution, total (g)
6. Molar mass of solute (g/mol)
7. Average molar mass of solute (g/mol)
Data Analysis, B
8. Standard deviation of molar mass
Data Analysis,C
9. Relative standard deviation of molar mass (%RSD)
Data Analysis, D
*Show calculation(s) for Trial 2 on the next page.
Experiment 14 197
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