Equivalent weight of crystalline oxalic acid is

Equivalent weight of dehydrated oxalic acid is

Equivalent weight of hydrated oxialic acid is

The equivalent mass of crystalline oxalic acid ( H_(2) C_(2) O_(4) . 2H_(2) O ) is equal to the equivalent weight of -

Required amount of crystalline oxalic acid (eq. wt. = 63 ) to prepare (N)/(10) , 250 ml oxalic acid solution is

Required amount of crystalline oxalic acid (eq. wt. = 63 ) to prepare (N)/(10) , 250 ml oxalic acid solution is