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Practical at Home - The Lemon Suds

This document summarizes an experiment showing the reaction between lemon juice and baking soda. When lemon juice (citric acid) is mixed with baking soda (sodium bicarbonate), a chemical reaction occurs where carbon dioxide gas is produced, forming bubbles. The experiment is carried out by mixing 1 teaspoon each of baking soda and liquid soap in a cup, then squeezing lemon juice into the mixture. Within 5 minutes, white bubbles began filling the cup as the acid-base reaction between the lemon juice and baking soda took place. This demonstrated that mixing an acid with a base produces a chemical reaction.

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Noor Amyrah
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222 views4 pages

Practical at Home - The Lemon Suds

This document summarizes an experiment showing the reaction between lemon juice and baking soda. When lemon juice (citric acid) is mixed with baking soda (sodium bicarbonate), a chemical reaction occurs where carbon dioxide gas is produced, forming bubbles. The experiment is carried out by mixing 1 teaspoon each of baking soda and liquid soap in a cup, then squeezing lemon juice into the mixture. Within 5 minutes, white bubbles began filling the cup as the acid-base reaction between the lemon juice and baking soda took place. This demonstrated that mixing an acid with a base produces a chemical reaction.

Uploaded by

Noor Amyrah
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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FACULTY OF SUSTAINABLE AGRICULTURE

RT10303 CHEMISTRY FOR AGRICULTURE

DR. LUM MOK SAM

PRACTICAL AT HOME (24/11/2020)

THE LEMON SUDS (EXPERIMENT 3)

Prepared by:

NOOR AMYRAH ALINA BT. MOHD AMERUL ‘ASRI BR20110034


TITLE: The Lemon Suds

OBJECTIVE: To observe the reaction between lemon and baking soda

INTRODUCTION:

A base is a compound which can donate hydroxide ions that are negatively charged. The
basic compound can break apart when you apply a base to water, and the addition of its
hydroxide ions renders the solution more basic. Bases are used to help neutralize stomach acid
for people who suffer from heartburn in many household cleaning products as well as in
medication.

In comparison, an acid is a compound that can donate a hydrogen ion that is positively
charged. It can detach when you add an acid to water, making the solution more acidic with
the addition of the hydrogen ions. Although some acids can be toxic, we need them to survive
as well. For example, the acid in saliva helps break down food for digestion when we chew.

An acid-base response is initiated when you combine an acid and a base. The acid and
base will neutralize each other, creating salt and water when there is an equal amount of
hydrogen and hydroxide ions present. You will investigate the reaction that takes place when
you mix an acid with a fundamental carbonate in this operation.

APPARATUS:

1. A lemon
2. Baking Soda
3. Liquid Soap
4. Cups
5. A measuring spoon (1 teaspoon)

SAFETY EQUIPMENT

1. Apron
PROCEDURE:

Firstly, 1 teaspoon of baking soda was measured into the empty cup. Then, a teaspoon
of liquid soap was added into the same cup. The spoon was used to stir the mixture. The cup
was leave on the table. The lemon was squeezed as much as possible into another the cup.

Next the lemon juice was poured into another cup that contains baking soda and liquid
soap. A chemical reaction started to form in just a few seconds. Filled the cup with lemon suds.

After that, used your hand to scoop out some of the suds to show the incredible
cleaning power. Lastly, the mixture can be poured down the drain as you finished the
experiment.

RESULTS:

Diagram 1 : White bubbles start to fill the cup

It took less than 5 minutes for the bubbles to form. The length of the bubbles form in the cup
was around 8 cm long from the bottom surface.

DISCUSSION:

A chemical reaction took place when the lemon juice acid (citric acid) came into contact with
the carbonate base (baking soda), producing carbon dioxide gas (CO2).
CONCLUSION:

In conclusion, the reaction occurs during the experiment is called an acid-base reaction. In
which it happen when we mixed up the baking soda, liquid soap and lemon substances
together.

REFERENCES:

 Stone, A. Harris. The chemistry of a lemon. Englewood Cliffs, NJ: Prentice-Hall, 1966.

 Thurber, Walter A., and Orlo L. Derby. "A UNIT ON ACIDS FOR THE ELEMENTARY
SCHOOL." School Science and Mathematics 42.2 (1942): 178-180.

 Whetzel, Joan. "Sour Science." Science Activities 35.4 (1999): 14-17.

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