81. Solving a chemistry problem

81. Solving a chemistry problem

137. After appropriate treatment, 3.034 g of glass was transferred into solution and the volume of the solution was brought to 100 cm3 with water. Then 20 cm3 of the solution was titrated with 7.06 cm3 of 0.005 M solution of Trilon B. Determine the percentage of iron in the glass.

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