Name:Date:Section:Report Sheet: Determination of Molecular Weight Through Freezing PointDepression Analysis30Part A:Volume of CyclohexanemLMass of cyclohexane (d =0.7786 g/mL)6.0°CFreezing Point of cyclohexane128Part B:Molecular Weight of Naphthaleneg/mol0.23Mass of Sample 1Moles of Sample 1Mass of Sample 20.18Moles of Sample 2Molesm (mol/kg solvent) T,('C)AT,Naphthalene5.1TRIAL 15.3TRAIL 2k, CyclohexaneCC/m)Part C:Unknown Number0.210.19Mass of Sample 1Mass of Sample 2Grams UnknownT,('C)AT0.214.8TRIAL 10.195.0TRAIL 2Moles UnknownTRIAL 1(moles)TRIAL 2(moles)TRIAL 1(g/mol)TRIAL 2(g/mol)Molecular Weight Unknown(g/mol)AVERAGE MOLECULAR WEIGHT OF UNKNOWN

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Part A: Volume of Cyclohexane mL Mass of cyclohexane (d= 0.7786 g/mL) 6.0 Freezing Point of cyclohexane °C 128 Part B: Molecular Weight of Naphthalene g/mol 0.23 Mass of Sample 1 Moles of Sample 1 Mass of Sample 2 0.18 Moles of Sample 2 m (mol/kg solvent) T,('C) AT, Moles Naphthalene 5.1 TRIAL 1 - 5.3 TRAIL 2 CC/m) 1 Cuelehexane

Part A: Volume of Cyclohexane mL Mass of cyclohexane (d= 0.7786 g/mL) 6.0 Freezing Point of cyclohexane °C 128 Part B: Molecular Weight of Naphthalene g/mol 0.23 Mass of Sample 1 Moles of Sample 1 Mass of Sample 2 0.18 Moles of Sample 2 m (mol/kg solvent) T,('C) AT, Moles Naphthalene 5.1 TRIAL 1 - 5.3 TRAIL 2 CC/m) 1 Cuelehexane

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 16QRT

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