new age concepts

>Solubility is defined as the number of grams of a solute that dissolves in 100g of a solvent to form a saturated solution at a given temperature and pressure. Suspension is a heterogeneous system consisting of particles of a solid bigger than 100 nm to 200 nm suspended in a liquid medium Colloidal..

Basic Concepts of Quantifying Effects of Pollution - Pollution is caused by almost all activities of human beings, either directly or indirectly. Use of mosquito repellent, use of cooking gas, use of diesel / petrol, use of detergent, passing of urine, throwing away wastes, use of pestici..

In 1923, a Danish Chemist J.H Bronsted and an English chemist T.M Lowry independently proposed new definitions for acids and bases. They proposed that: An acid is a substance that can donate a proton. A base is a substance that can accept a proton. These definitions are more general becau..

Growth at Different Levels - Growth is defined as an increase in the size and weight of an organism due to synthesis of new protoplas..

The wave character of an electron and uncertainty in its position and momentum gave a serious blow to Bohr's model of an atom. According to Bohr, the electrons revolve around the nucleus in certain well-defined circular orbits. But the idea of uncertainty in position and velocity overruled the Bohr..

Some years back Carol was traveling by a cargo ship from New Zealand to Tahiti. She was curious to look around the ship one day, and in the boiler room she asked a man how old the ship was. He smiled and replied 'The ship is twice as old as the boiler now. And the combined age o..

a. It produces new individuals having new combinations of traits. b. Crossing over has helped in establishing the concept of linear arrangement of genes. c. The frequency of crossing over helps in the mapping of chromosomes. i.e., determining the location of the genes ..

Hybridisation is the phenomenon of redistribution of energies of the orbitals of slightly different energies so as to give a new set of orbitals of equivalent energies. The new orbitals are called hybrid or hybridised orbitals. The number of hybridized orbitals formed is equal t..

It is the rate at which population grows. It is expressed as number of births occurring for every 1000 people per year. It is the most important parameter deciding population growth, as it indicates how many new children are added every year to existing population. It also gives an idea ..

Electrons cannot exist at a particular point or in a well-defined orbit (path), according to the above new approach called wave mechanics. This led to the concept of 'most probable regions'. We talk about 'certain regions in space around the nucleus called atomic orbitals,..