a)Is it possible to have an ionic compound that is not water soluble?b) Is it possible for an electrolyte to be covalent?

World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter8: Reactions In Aqueous Solutions
Section: Chapter Questions
Problem 4A
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a)Is it possible to have an ionic compound that is not water soluble?b) Is it possible for an electrolyte to be covalent?

 

Expert Solution
Step 1

Like dissolves like.

That means polar and ionic compounds are soluble in polar solvents

and non-polar substances are soluble in non-polar solvents.

 

 

 

Step 2

a)

Water is a polar solvent.

The structure of water is shown below:

Chemistry homework question answer, step 2, image 1

Oxygen attains partial negative charge due to its high electronegativity.

Hydrogen attains partial positive charge.

Due to this water attains polar nature.

 

All ionic compounds ionize completely in water.

These positive ions are attracted to partially negative oxygen and the negative ions are attracted to partially positive hydrogen of water molecule.

So, there are no ionic compounds that are not soluble in water.

All ionic compounds are soluble in water.

 

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