what is molality,normality and molarity and give there formula
Although their spellings are similar, molarity and molality cannot be interchanged. Compare the molar and molal volumes of 1 mol of solute dissolved in CCl4 (d = 1.59 g / mL)
By definition, a 1 M solution would contain 1 mol of solute in exactly 1.00 L of CCl4 , and a 1 m solution would contain 1 mol of solute in 629 mL of CCl4 . 1 kg of CCl4 x (1000 g / 1 kg) x (mL / 1.59 g) = 629 mL CCl4
It is defined as the number of equivalents per liter of solution:
There is a very simple relationship between normality and molarity:
N = n × M (where n is an integer)
For an acid solution, n is the number of H+ provided by a formula unit of acid.
example: A 3 M H2SO4 solution is the same as a 6 N H2SO4 solution.
For a basic solution, n is the number of OH- provided by a formula unit of base.
example: A 1 M Ca(OH)2 solution is the same as a 2N Ca(OH)2 solution.