Prac Work

T1P;

9.3-1.3.1; perform a first-hand investigation to prepare and test a natural indicator

Introduction: it is known that the colour in change of abandoned indicators can be used to determine the acidity of that substance.

organise: to determine the acidity/basicity of some common household substances utilise indicators

Materials:
Making the indicator
- expiration cabbage (diced)
-water
-100mL Beaker
-Bunsen burner
-Sieve
Tested substances:
-distilled water
-drain cleaner
-household ammonia
-vinegar
-lemonade
-baking soda
-shampoo
-conditioner
- See-through plastic sheet
- Sucker
venture Assessment:
Hazards:
There is the risk of ingesting toxic tested substances after touching substances without washing hands.
Also there is the risk of ruin if reckless near Bunsen flame.

Method:
1. Place diced reddish cabbage within beaker with water, make sure the cabbage fills the beaker to the top
2. turn the beaker over the Bunsen burner until the water is saturated with a downcast purplish
3. Sieve the content of the beaker over a separate containment, the purple coloured liquid is the indicator.
4. Suck a small audition of each tested substance and drop a hardly a(prenominal) mLs onto the plastic sheet evenly spaced as to repeal them mixing
5.



Add the indicator into the each sample and record the colour change

Results
|Substance tested |Indicator colour change: Red Cabbage |
|Distilled water |purple |
|Drain cleaner | potassium |
|Ammonia |Green |
|Vinegar |Red |
|Lemonade...If you want to maintain a full essay, order it on our website: Orderessay



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