In Liebig's combustion method for the estimation of carbon and hydrogen, the and formed are absorbed — Practical Organic Chemistry and Purification Chemistry Question
Question
In Liebig's combustion method for the estimation of carbon and hydrogen, the $H_2O$ and $CO_2$ formed are absorbed by passing the gaseous mixture through U-tubes. What are the correct absorbents used for $H_2O$ and $CO_2$ respectively?
Answer: A
💡 Solution & Explanation
During Liebig's combustion, water vapor is absorbed first by a U-tube containing anhydrous calcium chloride ($CaCl_2$). The carbon dioxide is then absorbed by a second U-tube containing a concentrated solution of potassium hydroxide ($KOH$).
💬Ask on WhatsApp →
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes