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Chapter 4: Q4.7P (page 178)

Why are some ionic compounds soluble in water and others are not?

Short Answer

Expert verified

ANSWER:

Those ionic compounds which have a strong ionic bond, does not soluble in water.

Step by step solution

01

Ionic compounds and their solubility in water 

:In an ionic solid, the oppositely charged ions are held next to each other by electrostatic attraction. Water separates the ions by replacing that attraction with one between the water molecules and the ions.

02

Step 2:

Step 2:Since the ionic compounds and the watermolecules are polar in nature therefore both attract each other by the force of attraction.Most ionic compounds dissociate and dissolve in water easily but if the force of attraction between ions of the ionic compound is stronger than the attraction force of water then its ionic bond does not dissociate and hence, these types of ionic compounds become water-insoluble.

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Most popular questions from this chapter

When each of the following pairs of aqueous solutions is mixed, does a precipitation reaction occur? If so, write balanced molecular, total ionic, and net ionic equations:

(a) Sodium sulfide + nickel (II) sulfate

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Ca(H2PO4)2(s)+NaHCO3(s)鈫�CO2(g)+H2O(g)+CaHPO4(s)+Na2HPO4(s)

[unbalanced]

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(a) How many moles of CO2 are produced from 1.00 g of baking powder?

(b) If 1 mol of CO2 occupies 37.0 L at 350_F (a typical baking temperature), what volume of CO2is produced from 1.00 g of baking powder?

Question: State a general equation for a neutralization reaction.

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