CHEM 1110 Midterm: Chemistry 1110 2004 Fall Test 4
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If i cannot read the work, it will not be graded: (10 pts) rank the following solutions in order of increasing boiling point. 0. 05 m na2co3, pure water and 0. 05 m nacl: (10 pts) circle and identify the functional groups in the following molecule. L industrial storage tank operates whenever the pressure of the enclosed carbon dioxide gas exceeds 110 atm. In december, the tank was filled with carbon dioxide at: atm when the ambient temperature was 10. c. Explain your answer: (10 pts) a closed tank contains 4. 5 mol of f2 and 2. 0 mol of cl2. 2. 50 atm, what is the partial pressure of cl2: (20 pts) iron pyrite, fes2, is the form in which much of the sulfur occurs in coal. Calculate the mass of fe2o3 that is produced from the reaction of 40. 0g of fes2 with 25. 0 l of o2 at 2. 33 atm and 50. 4 fes2 + 11 o2 (cid:198) 2 fe2o3 + 8 so2.
