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  4. Molarity of a given orthophosphoric acid solution is 3 M. It's normality is

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Q. Molarity of a given orthophosphoric acid solution is 3 M. It's normality is

MGIMS WardhaMGIMS Wardha 2008

Solution:

Orthophosphoric acid $ ({{H}_{3}}P{{O}_{4}}) $ is a tribasic acid. $ \because $ Normality $ =Molarity\times basicity $ $ \therefore $ Normality $ =3M\times 3 $ $ =9N $