The nitrogen content of organic compounds can be determined by the Dumas method.

Question

The nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first passed over hot Cuo(s): Compound N2(g) + CO2(g) + H2O(g) The gaseous products are then passed through a concentrated aqueous KOH solution to remove the Co2. CuO(s) The remaining gas contains N2 and water vapor A 0.138-g sample of a compound was treated as above, producing 89.9 mL of N2 saturated with water vapor at 25 °C and 754.6 torr What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25 °C is 23.8 torr.)

Explanation / Answer

The nitrogen content of organic compounds can be determined by the Dumas method.

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