Identification of the Organic Compound Producing Effervescence with NaHCO3

Introduction

Effervescence is the escape of gas from a liquid, which is a common observation when an acid reacts with a base. In this case, an organic compound produces effervescence when reacted with sodium bicarbonate (NaHCO3). This reaction is a test for the presence of carboxylic acid group in the organic compound.

Procedure

To perform the test, a small amount of organic compound is mixed with a pinch of sodium bicarbonate (NaHCO3) on a watch glass. If the organic compound has a carboxylic acid group, it will produce effervescence due to the release of carbon dioxide gas.

Explanation

The reaction between an organic compound with a carboxylic acid group and sodium bicarbonate (NaHCO3) can be represented as follows:

RCOOH + NaHCO3 → RCOONa + CO2 + H2O

In this reaction, the carboxylic acid group (-COOH) of the organic compound reacts with sodium bicarbonate (NaHCO3) to form sodium carboxylate (RCOONa), carbon dioxide (CO2) gas, and water (H2O). The release of carbon dioxide gas causes effervescence.

Examples

Some examples of organic compounds that produce effervescence with sodium bicarbonate (NaHCO3) are:

1. Acetic acid (CH3COOH)
2. Citric acid (C6H8O7)
3. Tartaric acid (C4H6O6)
4. Benzoic acid (C7H6O2)

Conclusion

The test for effervescence with sodium bicarbonate (NaHCO3) is a useful tool for identifying the presence of carboxylic acid group in an organic compound. This test can be performed easily and quickly, making it a popular method in organic chemistry.

Acectic acid that is CH3COOH gives effervescence.

This happened as there is a formation of CO2 in the reaction.

The reaction involved in this process is

CH3COOH + NaHCO3 ===> CH3COONa + H2O + CO2.

The lime water turns milky in the reaction.
Acectic acid that is CH3COOH gives effervescence.

This happened as there is a formation of CO2 in the reaction.

The reaction involved in this process is

CH3COOH + NaHCO3 ===> CH3COONa + H2O + CO2.

The lime water turns milky in the reaction.

Effervescence is basically formation of bubbles in a liquid.

The process involved is Neutralization.

Brisk effervescence is formed that is there is formation of quick bubbles.

NaHCO3 is a salt compund and is also known as baking soda.

Hence,

Acetic acid that is Carboxylic acids gives effervescence with NaHCO3 solution.


Effervescence is basically formation of bubbles in a liquid.

The process involved is Neutralization.

Brisk effervescence is formed that is there is formation of quick bubbles.

NaHCO3 is a salt compund and is also known as baking soda.

Hence,

Acetic acid that is Carboxylic acids gives effervescence with NaHCO3 solution.