Units

Acceleration is defined as the rate of change of velocity. If you’re not changing your speed and you’re not changing your direction, then you simply…

Retardation is a negative acceleration or deceleration. The velocity of a body may increase or decrease. Positive acceleration increases the speed of a moving object…

Mole Fraction is the ratio of number of moles of a particular component to the total number of moles of the solution. If a substance ‘A’…

An empirical formula represents the simplest whole number ratio of various atoms present in a compound whereas the molecular formula shows the exact number of…

Molarity is the most widely used unit and is denoted by M. It is defined as the number of moles of the solute in 1 litre…

Reactions in Solutions: A majority of reactions in the laboratories are carried out in solutions. Therefore, it is important to understand as how the amount of…

Many a Lime, the reactions are carried out when the reactants are not present in the amounts as required by a balanced chemical reaction. In…

Molecular mass is the sum of atomic masses of the elements present in a molecule. It is obtained by multiplying the atomic mass of each…

A device which produces plane polarized light is called a polarizer. A device which is used to examine, whether light is plane polarized or not…

Atoms and molecules are extremely small in size and their numbers in even a small amount of any substance is really very large. To handle…