Question

how to solve equivAlent weight of crystall of oxalic acid

Answer 1

If you are talking about acid bace reactions then equivalent mass of oxalic acid is 45g/mole

Molecular mass of H2C2O4 (oxalic acid) is 90g/mole

But it can neutralize 2 moles of base. So half mole is sufficient to neutralize 1mole of monoacidic base like NaOH.

So equivalent mass= molecular mass/2

=90/2

=45g/mole.

But as oxalic acid exists as H2C2O4.2H2O,

Then equivalent mass is 126/2=63g/mole

Answer 2

Hifffff. Finally freee point s.