Natasha was trying to identify 452.1 g of an unknown non- electrolyte sample. Given the limited instruments in their laboratory, she decided to mix the sample into 500.0 mL of water to determine the sample's effect on its boiling point and freezing point. The table shows the data she collected for the experiment (Kb= 0.512 °C/m and Kf= 1.86 OC/m) Trial 1 (°C) Trial 2 (°C) Trial 3 (°C) Mean (°C) Boiling point 104.20 103.80 104.10 104.03 Freezing point -14.71 -14.65 -14.63 -14.66 What is the molecular weight of the unknown sample? 229.4 g/mol 28.69 g/mol 57.23 g/mol 114.5 g/mol

Natasha was trying to identify 452.1 g of an unknown non- electrolyte sample. Given the limited instruments in their laboratory, she decided to mix the sample into 500.0 mL of water to determine the sample's effect on its boiling point and freezing point. The table shows the data she collected for the experiment (Kb= 0.512 °C/m and Kf= 1.86 OC/m) Trial 1 (°C) Trial 2 (°C) Trial 3 (°C) Mean (°C) Boiling point 104.20 103.80 104.10 104.03 Freezing point -14.71 -14.65 -14.63 -14.66 What is the molecular weight of the unknown sample? 229.4 g/mol 28.69 g/mol 57.23 g/mol 114.5 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

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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