What is the meaning of normality and its relation to molar concentration?

[WavesOfPhysics]

what does normality means, and how does it relate to molar concentration ?

 

[DrClaude]

http://en.wikipedia.org/wiki/Normality_(chemistry)

 

[epenguin]

Something that was much insisted on when I was at school, because i guess some kids found it hard to get their heads round. Like 1M HCl or NaOH are 1N but 1M H₂SO₄ or Na₂CO₃ are 2N. You get the idea? - it's the same as the distinction between molar masses and equivalent masses (or weights as we used to call them).

I think they have been phased out of teaching now, have they? If so it's no loss, they are unnecessary.

 

[Borek]

Normality meant different things at different moments in time. There was a period when normality depended on the reaction - so 1M sulfuric acid was 2N in the reaction with NaOH, but 1N inteh reaction with CaCl. Then IUPAC decided to make it always reaction with H⁺ or e^- - so 1M sulfuric acid would be always 2N. Then, IUPAC decided they created so much confusion it is better to deprecate normality at all.