explain the estimation of carbon and hydrogen by liebigs method
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What is Liebig's method for the estimation of carbon and hydrogen? A known mass of organic compound is heated in the presence of pure oxygen. The carbon dioxide and water formed are collected and weighed. ... Estimation of carbon and hydrogen in an organic compound is based on their conversion to CO, and H2O respectively
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The estimation of carbon and hydrogen by Liebigs method:
- Liebigs method was given by the German scientist Justus Freiherr von Liebig.
- He introduced the method of weighing hydrogen and carbon in a direct way rather than by volumetrically.
- In this method, first the organic compound's mass is measured.
- Then they are heated in the current of dry oxygen (free from carbon-dioxide) in the combustion tube.
- The combustion tube contains cupric oxide and copper guaze.
- The cupric oxide converts the organic compound to C02 and H2O.
- Based on the mass of carbon-di oxide and water, the percentage of carbon and hydrogen of organic compound is estimated.
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