In the Dumas method for estimating nitrogen, the evolved nitrogen gas is collected in a nitrometer over an aqueous solution of Potassium Hydroxide (). The purpose of the is to:

Question

In the Dumas method for estimating nitrogen, the evolved nitrogen gas is collected in a nitrometer over an aqueous solution of Potassium Hydroxide ($KOH$). The purpose of the $KOH$ is to:

Prashant Kotian · Accepted Answer

Correct answer: C. The combustion products contain and . The concentrated completely absorbs the and water vapor, leaving only the pure free nitrogen gas to be collected and measured at the top.

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