what is Formality and normality??
|Formality is the number of formula weights of solute per liter of solution. In case of ionic compounds, like NaCl, Na2CO3, in place of molarity, formality is used.||Normality is the number of gram equivalents of solute per litre of the solution.|
|It is represented by symbol F.||It is represented by symbol N.|
|F =Number of gram formula masses of solute/(Volume of solution in litre)||N= Strength in grams per litre/ (Equivalent mass of solute)|
Normality is defined as the number of gram equivalents of the solute dissolved per litre of the given solution. It is denoted by N.
Formality of a solution is defined as the number of gram formula masses of the solute dissolved per litre of the solution.
It is represented by 'F'
Hope this helps.
Formality, F, is the number of formula weight units of solute per liter of solution.Remember that one mole of a compound has a mass equal to the formula weight in grams. The number of formula weight units is equal to the number of moles for molecular substances.
Normality, N, is similar to molarity, moles of solute per liter of solution. However, instead of the entire solute, the normality is based on the number of moles of the active part of the solute, called a chemical equivalent.