6.50. A sample of fertilizer weighing 2.634 g was dissolved in hydrochloric acid and diluted to 250.0 ml. MgNH4PO4 was precipitated into 50.00 ml of this solution and the precipitate was calcined to Mg2P2O7, the mass of which turned out to be 0.3062 g. Calculate the mass fraction (%) of P2O5 in wet and absolutely dry fertilizer if the moisture content in the sample is 8.50%.

Read the product description. After payment, the system will redirect you to a page with a ready-made solution to problem 6.50 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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