Calculate molecular weight of Naphthalene in g/mol

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
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Calculate molecular weight of Naphthalene in g/mol.

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
Transcribed Image Text: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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