Solubility Equilibria Of Sparingly Soluble Salts
Chapter Name : Equilibrium |
Sub Topic Code : 102_11_07_14_01 |
Topic Name : Solubility Equilibria Of Sparingly Soluble Salts |
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Sub Topic Name : Solubility Equilibria Of Sparingly Soluble Salts |
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Introduction
The solubility of
ionic solids in water varies a great deal.
Some of these (like
calcium chloride) are so soluble that they are hygroscopic in nature and even
absorb water vapor from atmosphere.
.
The solubility depends
on a number of factors such as
•
Lattice enthalpy of the salt and
The solvation enthalpy of the ions in a solution
Pre-Requisites:
Reaction, salt,
lattice enthalpy, solvation enthalpy
Activity:
In the water treatment process, highly soluble sodium carbonate salt is added to precipitate out sparingly soluble calcium carbonate.
Real Life Question:
What are the
ingredients in toothpaste?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| hydrolysis | Process of interaction between water and cations/anions or both, of salts is called hydrolysis. Or simply breakdown due to addition of water |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
Calcium carbonate
used to make toothpaste.
Places to visit :
Water treatment plant
Practical examples around us
| Examples | Explainations |
|---|---|
| Calcium carbonate | Calcium carbonate is a sparingly soluble salt used to make toothpaste |
What you learn in Theory:
The solubility of
ionic solids in water varies a great deal.
Some of these (like
calcium chloride) are so soluble that they are hygroscopic in nature and even
absorb water vapor from atmosphere.
.
The solubility depends
on a number of factors such as
•
Lattice enthalpy of the salt and
The solvation enthalpy of the ions in a solution
What you learn in Practice:
The solubility of
ionic solids in water varies a great deal.
Some of these (like
calcium chloride) are so soluble that they are hygroscopic in nature and even
absorb water vapor from atmosphere.
.
The solubility depends
on a number of factors such as
•
Lattice enthalpy of the salt and
The solvation enthalpy of the ions in a solution