Question #31f57
1 Answer
Equivalents can be calculated from the mass of the substance and equivalent weight
Explanation:
I will tell the same with acid base neutralisation reaction
where M is the molarity and V volume of solution
The above equation is applicable to calculate volume (
in the above balanced reaction one mole of or equivalent of sodium hydroxide neutralises one mole or equivalent of nitric acid
In this example mole of sulphuric acid requires 2 moles of sodium hydroxide
The above equation to be used to calculate volume (
If write the same in terms of equivalents i.e., normality then the equation is same for both case
where N is the normality of solution
For acid base reactions
Equivalent weight of a acid or base = Molecular weight of acid or base / Number of replaceable H or OH
for example in 1 M sulphuric acid is 2 N acid solution, hence consumption of sodium hydroxide for neutralising acid is two times as compared to same volume and concentration of Nitric acid of 1 M
Hence normality based solutions are employed during such titrations