21. A 5.0 g sample of the alloy containing about 3% Ni was dissolved in a 200.0 ml volumetric flask. What volume of a solution of dimethylglyoxime C4H8N2O2 with a mass fraction of 1% (ρ = 0.93 g/cm3) will be required to precipitate nickel dimethylglyoximate from 20.00 ml of a solution obtained with a 50% excess of the precipitant?

Read the product description. After payment, the system will redirect you to a page with a ready-made solution to problem 6.21 from the collection: Vasilyev V.P. Analytical chemistry. Collection of questions, exercises and tasks: a manual for universities / V.P. Vasiliev, L.A. Kochergina, T.D. Orlova; edited by V.P. Vasilyeva. – 4th ed., stereotype. – M.: Bustard, 2006. – 318, [2] p.: ill. The solution is a document formatted in MS Word.
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