27. Solving a chemistry problem

27. Solving a chemistry problem

106. For the turbidimetric determination of chloride ion, to construct a calibration graph, 20 ml of KCl solution (T = 0.001051 g/ml) was placed in a 100 ml volumetric flask. Then, AgCl suspensions were prepared in 50 ml volumetric flasks containing V ml of this solution, diluted with water to the mark, and their optical densities were measured:
V, ml 2.0 4.0 6.0 8.0
A 0.22 0.47 0.70 0.94

Sample V1 ml of the analyzed solution was diluted to 100 ml, then 5 ml of this solution was transferred into a 50 ml flask and an AgCl suspension was prepared in it.
Determine the content of chloride ions mg/ml in the analyzed solution if the measured optical densities were equal
V1 - 25.0 A - 0.56

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