Question

To prepare 100 ml of m/20 oxalic acid solution

Answer 1

Answer:

A standard of oxalic acid is a known high purity substance that can be dissolved to give a primary standard solution in a known volume of solvent. To prepare a particular quantity, a known solvent weight is dissolved. It is ready using a standard, such as a primary standard substance.

Aim:

To prepare the standard solution M/10 of oxalic acids.

Theory:

Hydrated oxalic acid = C2H2O4.2H2O

Molecular mass of Oxalic Acid = 126.

12.6 g of oxalic acid per litre of the solution should be dissolved to prepare M/10 oxalic acid solution.

On the other hand,

12.6 /4 = 3.15 g of crystals of oxalic acid should be dissolved in water and precisely 250 ml of the solution should be produced.

Explanation:

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