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Unformatted text preview: b) . The number of molecules of sulfur trioxide produced. c) . The number of sulfur atoms AND the number of oxygen atoms present. 5) . A compound found in a human cell was determined to be composed of carbon, hydrogen, oxygen, and nitrogen. A combustion analysis of 1.35 g of this compound resulted in the isolation of 2.20 g of CO 2 and 0.901 g of H 2 O. When a second sample of this compound weighing 0.500 g was analyzed for nitrogen, 0.130 g of N 2 was produced. Determine the empirical formula of this compound. 6) . An industrial by-product produced in Oklahoma and detected in samples of water from the Arkansas River is composed of the elements carbon, hydrogen, oxygen and chlorine. The combustion analysis of 0.100 g of this compound yielded 0.0682 g of CO 2 and 0.0140 g of H 2 O. Analysis of the sample for chlorine content indicated that the mass percent of chlorine in the compound was 55.0 %. What is the empirical AND molecular formula of this compound?...
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- Fall '07