6. A portion of 1.9230 g of aluminum nitrate crystalline hydrate was dissolved and diluted with water in a 100.0 ml volumetric flask. To an aliquot of 10.00 ml of this solution was added an excess of magnesium complexonate. 18.55 ml of a solution of 0.02503 M Trilon B was used for titration of the released magnesium ions. Calculate the mass fraction of aluminum nitrate in the crystalline hydrate.

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