Question

To prepare 250 ml of m/20 solution of mohr's salt reaction

Answer 1

Answer:

To prepare 250 gm m/20 oxalic acid -Molecular formula of solid crystalline oxalic acid: H2C2O4, 2H2O. Its Molecular Wt. 126. Hence, to prepare 250 ml M/20 oxalic acid solution 126*250/(20*1000) = 1.575 gram of oxalic acid is to be dissolved in water in a 250 ml volumetric flask.