6.81. A sample of an organic compound consisting of C, H, O weighing m1 (g) was burned to CO2 and H2O. The increase in the mass of the tube with alkali due to the absorption of CO2 was m2 (g). The increase in the mass of the tube filled with CaCl2 due to the absorption of H2O was m3 (g). Calculate the mass fractions (%) of C, H and O in the analyzed compounds and give their empirical formulas:

Option m1, g m2, g m3, g
1 0.0382 0.0729 0.0448
2 0.0432 0.0949 0.0519
3 0.0311 0.0621 0.0254

Read the product description. After payment, the system will redirect you to a page with a ready-made solution to problem 6.81 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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