II. Freezing point of a pure solid.Data Table.1. mass of pure naphthalene o laSeode roc9.571g* 2. Freezing (melting ) point of naphthalene 10.4%III. Molecular weight by freezing point depression.Data Table1. mass ofunknown* 2. Freezing (melting ) point of solution12.3°0Calculation (Carry out to proper number of significant digits.)1. aT (difference in freezing points of pure naphthalene andsolution)AT=on aworpinuU2. molecular weight of unknown soluteAF=Kf•m/Kf Naph7.0°%/molal146

Mass of pure napthalene = M = 9.579 g = 9.579 * 10-3 kgFreezing Point of napthalene = TN = 78.6…

II. Freezing point of a pure solid. Data Table. 1. mass of pure naphthalene o l seode os 9.579g 15419 * 2. Freezing (melting ) point of naphthalene 18.4% III. Molecular weight by freezing point depression. Data Table 1. mass ofunknown * 2. Freezing (melting ) point of solution 72.3°0 Calculation (Carry out to proper number of significant digits.) 1. at (difference in freezing points of pure naphthalene and solution) AT= on aworpinuU 2. molecular weight of unknown solute AF=Kf•m Kf Naph =7.0°%/molal

II. Freezing point of a pure solid. Data Table. 1. mass of pure naphthalene o l seode os 9.579g 15419 * 2. Freezing (melting ) point of naphthalene 18.4% III. Molecular weight by freezing point depression. Data Table 1. mass ofunknown * 2. Freezing (melting ) point of solution 72.3°0 Calculation (Carry out to proper number of significant digits.) 1. at (difference in freezing points of pure naphthalene and solution) AT= on aworpinuU 2. molecular weight of unknown solute AF=Kf•m Kf Naph =7.0°%/molal

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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