Question

preparation and standardization of various molar and normal solution of oxalic acid

Answer 1

Oxalic acid (COOH)2

Oxalic acid is available in pure state and its standard solutions can, therefore, be prepared by the direct method. Eq. wt. of hydrated oxalic acid (C2H2O4.2H2O), being 63 its N/10 solution would contain 6.3 gm/litre, and N/20 solution would contain 3.15 gm/ litre.

These standard solutions are employed to find the strength of solutions of alkalies (NaOH and KOH) whose standard solutions cannot be prepared by the direct method.