Experiment to determine the amount of acetic acid in a white and apple vinegar

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Student Name: Class
Year 11 CHEMISTRY
Assessment Task 2-19 DEPTH STUDY
SCIENTIFIC REPORT
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Title:
Experiment to determine the amount of acetic acid in a white and apple vinegar.
Aim:
Introduction:
1To investigate how manufacturing and processing affect strength of acetic acid between
the two types of vinegar (white and apple) vinegar.
The purpose of the experiment is to investigate how manufacturing and
processing affect strength of acetic acid between the two types of vinegar
(white and apple) vinegar. The practical was conducted in a chemistry
laboratory. Acid-base titration being the principle knowledge used in conducting
the practical.

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Hypothesis:
Equipment Used:
Safety goggles a funnel Phenolphthalein indicator
0.1312 molar sodium hydroxide solution Distilled water.
250 ml conical flask Stirring rod
White tile, clamp, boss and retort stand 50ml burette
Laboratory coat, rubber gloves 25 ml pipette and a pipette filler
Method:
The greater the purification of the vinegar the higher the amount of acetic acid.
Titrating vinegar (acetic acid) in a burette against a 0.1312 molar sodium
hydroxide (titrant) in a conical flask.
Procedure
 Wear safety goggles, laboratory coat and gloves because you are
handling sodium hydroxide and any accidental spillage on your body part
must be washed off with adequate running water.
 Attach the burette vertically using the clamp using boss, clamp and retort
stand.
 Put a white tile on the base of the stand and place a conical flask on top
of it.
 Using a pipette and a pipette filler, siphon 25 ml of 0.1312 molar sodium
hydroxide and pour it into the conical flask and add 2 drops of
phenolphthalein indicator into it.
 Pour vinegar into a burette with an aid of a funnel and mark it.
 Mark the readings on the burette before and after starting titration.
 Start the titration while stirring the solution in the conical flask till end point
when the pink-red solution turns colorless.
 Record the readings on the burette, refill the burette, pour out the solution
in the conical flask and rinse it with distilled water. Then repeat the
procedure once again.

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Scientific Diagram of Experiment set up:
Titrant= vinegar
Analyte= sodium hyroxide