Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Chapter 10, Problem 67QAP
Interpretation Introduction

Interpretation:

The boiling temperature of pure bromobenzene C6H5Br is 156.0°C. The boiling point constant of bromobenzene is 6.26°C/m. The anthracene, C14H10 contaminated the sample of bromobenzene. The temperature 159.2°C is the boiling point temperature of the impure sample of bromobenzene. The purity of the sample in terms of mass percent is to be determined.

Concept introduction:

The following formulas will be used:

  Molality= moles solutemass solvent(kg)

  ΔTb=kb×molality

  ΔTb=TbTb°

  number of moles=massmolar mass

  Mass% of solution=Mass of solutiontotal mass×100

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Chapter 10 Solutions

Chemistry: Principles and Reactions

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