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The nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first reacted by passage over hot CuO(s).: Compound N ( g ) CO ( g ) H O( g ) 2 2 2 hot CuO(S)→ + + The product gas is then passed through a concentrated solution of KOH to remove the CO2. After passage through the KOH solution, the gas contains N2 and is saturated with water vapor. In a given experiment a 0.253 g sample of a compound produced 31.8 mL N2 saturated with water vapor at 25C and 726 torr. What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25C is 23.8 torr

The nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first reacted by passage over hot CuO(s).: Compound N ( g ) CO ( g ) H O( g ) 2 2 2 hot CuO(S)→ + + The product gas is then passed through a concentrated solution of KOH to remove the CO2. After passage through the KOH solution, the gas contains N2 and is saturated with water vapor. In a given experiment a 0.253 g sample of a compound produced 31.8 mL N2 saturated with water vapor at 25C and 726 torr. What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25C is 23.8 torr

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The nitrogen content of organic compounds can be determined by the Dumas method. The

compound in question is first reacted by passage over hot CuO(s).:

Compound N ( g ) CO ( g ) H O( g ) 2 2 2

hot CuO(S)→ + +

The product gas is then passed through a concentrated solution of KOH to remove the CO2.

After passage through the KOH solution, the gas contains N2 and is saturated with water vapor.

In a given experiment a 0.253 g sample of a compound produced 31.8 mL N2 saturated with

water vapor at 25C and 726 torr. What is the mass percent of nitrogen in the compound? (The

vapor pressure of water at 25C is 23.8 torr)

42. The nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first reacted by passage over hot CuO(s).: hot CuO (S)_,N2(g)+CO2(g)+H20(g) Compound - The product gas is then passed through a concentrated solution of KOH to remove the CO2. After passage through the KOH solution, the gas contains N2 and is saturated with water vapor. In a given experiment a 0.253 g sample of a compound produced 31.8 mL N2 saturated with water vapor at 25°C and 726 torr. What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25°C is 23.8 torr).
Transcribed Image Text:42. The nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first reacted by passage over hot CuO(s).: hot CuO (S)_,N2(g)+CO2(g)+H20(g) Compound - The product gas is then passed through a concentrated solution of KOH to remove the CO2. After passage through the KOH solution, the gas contains N2 and is saturated with water vapor. In a given experiment a 0.253 g sample of a compound produced 31.8 mL N2 saturated with water vapor at 25°C and 726 torr. What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25°C is 23.8 torr).
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