Why is a solution of potassium hydroxide used | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(N/A) Carbon dioxide $(CO_2)$ is acidic in nature,while potassium hydroxide $(KOH)$ is a strong base.When $CO_2$ gas is passed through the $KOH$ solut

Vedclass · Accepted Answer

Vedclass · Answer

(N/A) Carbon dioxide $(CO_2)$ is acidic in nature,while potassium hydroxide $(KOH)$ is a strong base.
When $CO_2$ gas is passed through the $KOH$ solution,it reacts to form potassium carbonate $(K_2CO_3)$ and water $(H_2O)$ according to the following chemical equation:
$2KOH + CO_2 \longrightarrow K_2CO_3 + H_2O$
As a result,the mass of the $U$-tube containing $KOH$ increases.
This increase in the mass of the $U$-tube corresponds to the mass of $CO_2$ produced during the combustion of the organic compound.
By measuring this mass,the percentage of carbon in the organic compound can be accurately calculated.

Why is a solution of potassium hydroxide used to absorb carbon dioxide evolved during the estimation of carbon present in an organic compound?

Similar Questions

The angle between the lines whose direction cosines are given by the equations $l^2+m^2-n^2=0$ and $l+m+n=0$ is

The bond order of individual carbon-carbon bonds in benzene is

When a primary amine reacts with chloroform in the presence of ethanolic $KOH$,the product formed is:

When two species of different genealogy come to resemble each other as a result of adaptation,the phenomenon is termed as

Let a random variable $X$ have a Binomial distribution with mean $8$ and variance $4$. If $P(X \leq 2) = \frac{k}{2^{16}}$,then $k$ is equal to:

Vedclass Test Series

Exam Paper Generator

Online Exam Module