solubility

Solubility refers to the amount of solute that can dissolve in a given solvent at room temperature.

How do substances dissolve? Solvation - there is an interaction between the solute and the solvent. The solute particles are usually surrounded by the solvent particles. This process is called solvation.

The nature of the solute and the solvent affects whether a substance will dissolve. If the solute contains charged particles, it will also dissolve in a solvent that has a tendency to have charges. On the other hand, a solute that does not have a tendency to be charged can only dissolve in a solvent that has similar characteristics.

Agitation makes the solute dissolves more rapidly because it brings fresh solvent into contact with the surface of the solute. However, agitation affects only the rate at which a solute dissolves. It cannot influence the amount of solute that dissolves. An insoluble substance will remain undissolved no matter how much the system is agitated.

Rules on solubility:
1. A substance is insoluble if less than or equal to 0.1g dissolves in 1 liter of water at room temperature.

2. A substance is slightly soluble if greater than 0.1g but less than 10 g dissolves in 1 liter of water at room temperature.

3. A substance is soluble if 10 g greater than 10 g of the substance dissolves in 1 liter of water at room temperature.