This document presents a student project report that studied the comparative efficiency of different antacids. The student analyzed various antacids by titrating powdered samples against a standardized NaOH solution. Results showed that OMEE-D required the least amount of HCl to neutralize, making it the most efficient antacid, while REBLET-D required the most HCl and was the least efficient. A graph clearly illustrated the different volumes of HCl needed to neutralize each antacid. The project thus concluded that OMEE-D has the highest efficiency as an antacid.

1. SEC PROJECT REPORT
Presented by
Name:- Pranab kr Baishya
Class:- B.sc 4th semester (H)
Roll No:- US-211-122-0058
Paper Code:- CHE-SE-4034
Department of chemistry, Guided By:
Barnagar College, Sorbhog Dr. Diganta Bhuyan
HOD. Dept of chemistry

2. INDEX
• Aim and Objective
• Introduction
• Theory
• Results
• Graphical Representation
• Conclusion
• Bibliography

3. Aim and Objective
The aim of the project is Study of the comparative
efficiency of different Antacids. We can analysis the
antacids by titrating the powdered antacids solution
against standarised NaOH solution using
phenolphthalein as an indicator. A permanent pink
colouration indicates the neutral points of the titration.

4. Introduction
Dilute HCl is secreted in our stomach which provide
mild acidic conditions required for the junctioning of the
digesting enzymes. However due to overeacting and
eating of spicy and fatty food, stomach secrets excess of
HCl acid. This creates hyperacidity that interferences in
the normal digesting process, which lead to acute
discomfort due to indigesting.

5. Theory
Antacids are basically composed of hydroxides of
magnesium and aluminium along with their silicates and
an activator. The efficiency of an antacids is determined
by finding the amount of hydrochloric acid required to
neutralize antacids. The more is the volume of
hydrochloric acid required to neutralize the antacids, the
more is the efficitiveness of the antacids.
Mg(OH)2 + 2HCl → MgCl2 + 2H2O
Al(OH)3 + 3HCl→ AlCl3 + 3H2O

6. Sl no
Volume of
sodium
carbonate
solution
taken
Burret Reading
Volume of
HCl
Initial
(ml)
Final (ml)
1 25 0 24.2
2 25 0 24.0 24.0
3 25 0 24.0
•Standarisation of HCl solution by using
sandard Na2CO3 solution
Table :- 1
Therefore strength of HCl is 0.208 M

7. Sl no
Volume of
sodium
hydroxide
solution
Burrate Reading
Volume of
HCl
soluton
(ml)
Initial (ml) Final (ml)
1 25 0 15.7
2 25 0 15.0 15.0
3 25 0 15.0
•Standarisation of NaOH solution
Table:- 2
Therefore the strength of NaOH is 0.124 M

8. Results
The overall efficiency of antacids are given below
Table:- 3
Antacids HCl required to neutralise
REBLET-D 8.1 ml
PAN-D 6 ml
PAN-40 2.7 ml
REBEZ-D 1.8 ml
OMEE-D 1.2 ml

9. Graphical representation
0
1
2
3
4
5
6
7
8
9
REBLET-D PAN-D PAN-40 REBEZ-D OMEE-D
Volume
of
HCl
(ml)
Antacids

10. Conclusion
It can seen from the above table and graph that, the
maximum amount of HCl is required to neutralize the
antacid named “RABLET-D” and the minimum
amount of HCl is required to neutralize the antacid
named “OMEE-D”.
Thus it can be summarized that, “RABLET-D” has
the highest efficiency and “OMEE-D” has the lowest
amounts of efficiency as an antacid.

11. Bibliography
• Practical chemistry by Dr. O.P. Pandey, Dr. D.N. Bajpai
and Dr. S. Giri.
• A textbook of Practical Chemistry by Dr. Sudarsan
Barua

12. THANK YOU