6.54. From a sample of steel weighing 1.000 g, a precipitate of SiO2 and WO3 with a total mass of 0.1021 g was obtained. After treating the precipitate with HF and removing SiO2, the mass of the WO3 residue was 0.0712 g. Calculate the mass fractions (%) of Si and W in the steel.

Read the product description. After payment, the system will redirect you to a page with a ready-made solution to problem 6.54 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.
Thank you for your purchase!