011. Solving a chemistry problem

011. Solving a chemistry problem

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2. When determining Mn in steel, a 0.200 g sample was dissolved, Mn was oxidized to MnO4- and the solution was diluted to 0.200 ml. Photometry was carried out by a differential comparison method with a standard solution Cst = 20 mg/l and a zero solution with a KMnO4 concentration of 0.0005 N. The optical densities of the test solution and the standard solution relative to the zero solution were respectively: Ast′= 0.28; Ax′= 0.15. Find the % Mn content in steel.

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  • Content description 35,51 kB
  • Added to the site 02.01.2024
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.

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