Indicators: Definition, Characteristics and Uses! Definition: Certain dyes which can determine the hydrogen ions in a solution are said to be Indicators. Characteristics: 1. The dyes are weak acids (or, less commonly, weak bases). 2. They have the property of dissociating in solution to yield ions of different colours from the un-dissociated molecules. 3. The pH at which dissociation will [...]
In this article we will discuss about:- 1. Definition of Diffusion 2. Characteristics of Diffusion 3. Physiological Role. Definition of Diffusion: The spreading of solute molecules throughout the water molecules is called diffusion. Experiment: When a lump of sugar is added to a glass of water, the sugar gradually disappears and, ultimately, a homogeneous solution is formed automatically. This is [...]
In this article we will discuss about Colloids:- 1. Introduction to Colloids 2. Definition of Colloids 3. Terminology 4. Precipitation 5. Protective Colloids 6. Stability 7. General Properties 8. Types 9. Physiological Application. Contents: Introduction to Colloids Definition of Colloids Colloid Terminology Precipitation of Colloidal Particles Protective Colloids Stability of Colloidal System General Properties of Colloidal Solution Types of Colloidal [...]