Report Sheet: Determination of Molecular Weight Through Freezing Point Depression Analysis Part A: Volume of Cyclohexane29.1 Mass of cyclohexane (d-0.7786 g/mL)22.6578 Freezing Point of cyclohexane 6.56 °C Part B: Molecular Weight of Naphthalene Mass of Sample 1 Moles of Sample 1 Mass of Sample 2 Moles of Sample 2 Moles m (mol/kg solvent) T,('C) Naphthalene 'IV TRIAL 1 5.67 - TRAIL 2 k, Cyclohexane CC/m) Part C: Unknown Number 15 Mass of Sample 2 o.190978 Mass of Sample 1 O.18086 8 Grams Unknown T,(C) TRIAL 1 5.85 TRAIL 2 TRIAL 2 (moles) Moles UnknownTRIAL 1 (g/mol) (g/mol)TRIAL 2. Molecular Weight Unknown TRIAL 1 AVERAGE MOLECULAR WEIGHT OF UNKNOWN

Report Sheet: Determination of Molecular Weight Through Freezing Point Depression Analysis Part A: Volume of Cyclohexane29.1 Mass of cyclohexane (d-0.7786 g/mL)22.6578 Freezing Point of cyclohexane 6.56 °C Part B: Molecular Weight of Naphthalene Mass of Sample 1 Moles of Sample 1 Mass of Sample 2 Moles of Sample 2 Moles m (mol/kg solvent) T,('C) Naphthalene 'IV TRIAL 1 5.67 - TRAIL 2 k, Cyclohexane CC/m) Part C: Unknown Number 15 Mass of Sample 2 o.190978 Mass of Sample 1 O.18086 8 Grams Unknown T,(C) TRIAL 1 5.85 TRAIL 2 TRIAL 2 (moles) Moles UnknownTRIAL 1 (g/mol) (g/mol)TRIAL 2. Molecular Weight Unknown TRIAL 1 AVERAGE MOLECULAR WEIGHT OF UNKNOWN

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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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Complete Part C.

Name:
Report Sheet: Determination of Molecular Weight Through Freezing Point
Depression Analysis
Date:
Section:
Part A:
Volume of Cyclohexane 21.1
Mass of cyclohexane (d = 0.7786 g/mL) 22.657g
Freezing Point of cyclohexane .56
Part B:
Molecular Weight of Naphthalene
g/mol
Mass of Sample 1
Moles of Sample 1
Mass of Sample 2
Moles of Sample 2
Moles
m (mol/kg solvent) T,(C)
Naphthalene
5.67
TRIAL 1
TRAIL 2
(C/m)
k,Cyclohexane
75
Unknown Number
Part C:
Mass of Sample 2 o.190978
Mass of Sample 1 0.18086 g
AT,
Grams Unknown
TRIAL 1
5.85
TRAIL 2
(moles)
TRIAL 2
(moles)
Moles UnknownTRIAL 1
(g/mol)
(g/mol)TRIAL 2
Molecular Weight Unknown TRIAL 1
AVERAGE MOLECULAR WEIGHT OF UNKNOWN

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