Testing Ph
Aim: To test the pH of a range of household chemicalsEquipment: A variety of household chemicals, spotting tile red litmus paper, blue litmus paper, Universal indicator solution, safety glasses.
Method: 1. Add a few drops of each chemical to a spot on your spotting tile. If a substance is solid or powered you will need to mix it with a few drops of water before testing. 2. Test the chemicals with litmus papers. 3. Test each chemical with a few drops of universal indicator.
Results:
Chemical being tested
|
Colour in blue litmus
|
Colour in red litmus
|
Colour in Universal indicator
|
Dettol
|
Red
|
Red
|
Orange
|
Morning fresh
|
Blue
|
Blue
|
Green
|
Jif
|
Blue
|
Blue
|
Green
|
Harpic
|
Green
|
Red
|
Red
|
Pledge
|
Blue
|
Red
|
Green
|
Conclusion
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