Vasiliev Chapter 6 Problem 57
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6.57. A sample of an aromatic nitro compound was mixed with hydrochloric acid and methanol, an accurately weighed portion of metallic tin weighing m1 (g) was added and heated. At the same time there was a reaction:
2RNO2+3Sn+12H+=2RNH2+4H2O+3Sn4+
The mass of unreacted tin turned out to be equal to m2 (g). What mass of nitro compounds indicated in the table was contained in the analyzed sample:
Option Compound M, g/mol m1, g m2, g
1 Nitrobenzene C6H5NO2 123.12 0.5225 0.4115
2 Nitrophenol (OH)C6H4NO2 139.11 0.6320 0.4818
3 Nitroaniline H2NC6H4NO2 138.13 0.6117 0.5001
4 Nitrobenzaldehyde C6H4NO2CHO 151.12 0.6002 0.5175
2RNO2+3Sn+12H+=2RNH2+4H2O+3Sn4+
The mass of unreacted tin turned out to be equal to m2 (g). What mass of nitro compounds indicated in the table was contained in the analyzed sample:
Option Compound M, g/mol m1, g m2, g
1 Nitrobenzene C6H5NO2 123.12 0.5225 0.4115
2 Nitrophenol (OH)C6H4NO2 139.11 0.6320 0.4818
3 Nitroaniline H2NC6H4NO2 138.13 0.6117 0.5001
4 Nitrobenzaldehyde C6H4NO2CHO 151.12 0.6002 0.5175
Read the product description. After payment, the system will redirect you to a page with a ready-made solution to problem 6.57 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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