pH scale

The nature of a substance that weather it is acidic or basic can be determined in terms of concentration of hydrogen ion or hydroxide in it. If an aqueous solution has an equal concentration of hydrogen ions and hydroxide ions, then it is neither acidic nor basic,...

Acid and base

The word acid is derived from Greek word which means ‘sour’. These have generally sour taste and they can change blue litmus into red. On the other hand the bases are the substance which have bitter taste and which can convert red litmus into blue. When bases are...

Electrolytes

A compound which conducts electricity when dissolved in water or in molten state is called an electrolyte. For example, the aqueous solution of sodium chloride (NaCl), copper sulphate (CuSO4), sodium hydroxide (NaOH) and silver nitrate (AgNO3) are electrolytes....

Equilibrium constant

It has been found experimentally that at a particular temperature, when equilibrium is achieved, the ratio between the concentration of products and reactants becomes constant. This can be represented with the help of following formula: Example:- In reaction N2 (g)...

Factor effecting chemical equilibrium

Following are the factors which affect the equilibrium state of a reaction-     1. Temperature    2. Pressure    3. Concentration of reactants and products    4. Catalyst The effect of these factors on chemical equilibrium can be understood with the help of Le...

Equilibrium reactions

It is a common observation that most of the reactions when carried out in a closed vessel do not go to completion under given set of conditions of temperature and pressure. In fact in such cases, in the initial state, only the reactants are present but as the reaction...