1. DATA LOGGER :
ACID-BASE TITRATION
 Khodijah bt Ahamad Ariffin
(D20101037507)
 Nur Azuaniza bt Hasnan (D20101039445)
 Siti Hafsah bt Hj Mohtar (D20101037434)

2. ENGAGEMENT
WHAT THE TASTE OF SOAP AND LEMON?
WHAT ABOUT THE PH VALUE?

3. ACID-BASE TITRATION
EXPERIMENT

4. EMPOWER
The objectives of this experiment are
manifold:
1)To construct acid-base titration curves in a very
similar way to that offered by automatic titrators.
2)To learn some of the principles associated with
acid-base titration curves by using DrDAQ as an
educational tool.
3)To use the generated titration curves to
determine the concentration of some analytes in
common samples such: as acetic acid in
vinegar, and sodium bicarbonate in baking
powder.

5. Equipment required
 DrDAQ
 Glass combination pH electrode.
 One beaker (125 ml).
 Magnetic stirrer-magnet bar
 Air pump (JUN ACO 9903) (can demonstrate the validity of
the experiment) for higher accuracy and reliability a peristaltic
or syringe pump is preferred.
 Tygon Tubing.
 1 l glass bottle with tight lid.
 0.1 mol/l HCl. 0.1 mol/l NaOH.
 0.1 mol/l Na2CO3.
 Vinegar.
 Graduated cylinder, 25 ml.
 5 ml graduated pipette.
 25 ml pipette.

6. THE PROCEDURE
 Part 1: determination of unknown HCl
concentration (standardization of HCl)
 Part 2: determination of the concentration of
sodium hydroxide solution
 Part 3: determination of the content of sodium
bicarbonate commercial baking powder
 Part 4: determination of acetic acid content in
vinegar
 Part 5: comparison between the titration of
acetic acid and HCl with NaOH:

7. THE SET UP OF EXPERIMENT

8. TITRATION CURVE OF SODIUM
CARBONATE AGAINST HCL TITRATION CURVE OF NAOH AGAINST HCL
Part 1 Part
2
RESULT FOR THE EXPERIMENT

9. TITRATION CURVE OF BAKING POWDER TITRATION CURVE OF VINEGAR AGAINST
AGAINST HCL NAOH
Part 3 Part 4

10. TITRATION CURVE OF HCL AGAINST NAOH
Part 5

11. ENHANCEMENT
DO YOU LIKE TO EAT?

12. IS THE PH VALUE FOR EVERY FOODS IS SAME?
To guard against acid loads from food
consumption and tissue metabolism, we
have 3 main regulatory systems:
 Buffer systems that work in cellular fluid and
the bloodstream to keep pH constant
 The respiratory centre (aka the lungs and
oxygen or carbon-dioxide carrying structures)
 Kidney regulation

14. ACID-BASE BALANCING=TITRATION

15. IF PH LEVELS AREN’T BALANCED,
this can mean negative health outcomes that
include:
 Decreased growth factors
 Growth hormone resistance
 Mild hypothyroidism
 Loss of muscle mass
 Enzymatic changes in cells
 Altered regulation of metabolites and minerals
 Decreased uptake and release of oxygen