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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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When 5 0  mL of liquid water at 25  ° C is added to 5 0  mL of ethanol (ethyl alcohol), also at 25  ° C , the combined volume of the mixture is considerably less than 1 00  mL . Give a possible explanation.

Interpretation Introduction

Interpretation:

The reason for mixture of 50 mL water and 50 mL of ethanol at 25 0C to be less than 100 mL should be explained.

Concept Introduction:

Hydrogen bond is formed between the hydrogen and an atom with high electronegativity surrounding the hydrogen. The hydrogen bond can be intermolecular or intramolecular depending if it is formed in between two molecules or within a molecule respectively. Solution of ethanol in water shows negative deviation.

Explanation

Solution of ethanol in water is not an ideal solution. It shows negative deviation. Negative deviation of solution is associated with decrease in volume and decreases in enthalpy...

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