Solved: The nitrogen content of organic compounds can be
Chapter , Problem 109(choose chapter or problem)
The nitrogen content of organic compounds can be determinedby the Dumas method. The compound in question is first reactedby passage over hot CuO(s):The product gas is then passed through a concentrated solutionof KOH to remove the CO2. After passage through the KOH solution,the gas contains N2 and is saturated with water vapor. Ina given experiment a 0.253-g sample of a compound produced31.8 mL N2 saturated with water vapor at 25_C and 726 torr.What is the mass percent of nitrogen in the compound? (Thevapor pressure of water at 25_C is 23.8 torr.)
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