Objective:
To estimate the amount of barium in the whole of the given solution of barium chloride.
The Gravimetric Estimation of Barium:
The given barium chloride solution is made up to a definite volume. A measured volume of it is then treated with dilute sulphuric acid and then treated with dilute sulphuric acid and barium precipitated as barium sulphate.
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The precipitated barium sulphate is separated and weighed. The mass of Barium in the whole of the given solution is calculated knowing that 233.36 g of barium sulphate contains 137.36 g of barium.
Note: For more details refer the theory of "Gravimetric Estimation of Nickel."