Answered: The normal boiling point of a certain…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter12: States Of Matter

Section: Chapter Questions

Problem 100A

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The normal boiling point of a certain liquid X is 109.50°C, but when 44.2g of benzamide (C7H7NO) are dissolved in 500.g of X the solution boils at 111.1°C instead. Use this information to calculate the molal boiling point elevation constant Kb of X.Round your answer to 2 significant digits.

=Kb⋅°Ckgmol

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elevation in boiling point is a colligative property which depends on number of moles of solute present in a solution.

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