س/ محلول يحتوي علی)gm 9.2( من مادة مذابة في )0gm 20( من الايثانولعند درجة غليان )79( أحسب الوزن الجزيئي ل لمذاب علما أن درجة غليانالايثانول النقي يساوي )° 78.3 ( وثابت الارتفاع بدرجة الغليان(1.19 K.Kg/mol) Q/a solution containing (9.2 gm) of a substancedissolved in (200 gm) of ethanol at a boilingpoint of (79 c9) Calculate the molecular weightof the solute knowing that the boiling point ofpure ethanol is equal to (78.3 ° c) and the riseconstant at the boiling point is (1.19 K. Kg / mol)

To determine the molecular weight of the solute Formula used : ∆Tb = Kbmwhere ∆Tb is the change in…

Answered: (9.2 9 dissolved in (200 gm) of ethar…

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(9.2 9 dissolved in (200 gm) of ethar point of (79 c9) Calculate the of the solute knowing that the

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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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

س/ محلول يحتوي علی)gm 9.2( من مادة مذابة في )0gm 20( من الايثانول
عند درجة غليان )79( أحسب الوزن الجزيئي ل لمذاب علما أن درجة غليان
الايثانول النقي يساوي )° 78.3 ( وثابت الارتفاع بدرجة الغليان
(1.19 K.Kg/mol)

Q/a solution containing (9.2 gm) of a substance
dissolved in (200 gm) of ethanol at a boiling
point of (79 c9) Calculate the molecular weight
of the solute knowing that the boiling point of
pure ethanol is equal to (78.3 ° c) and the rise
constant at the boiling point is (1.19 K. Kg / mol)

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