Aim - To test the pH of a range of household chemicals.
Equipment - A variety of household chemicals, spotting tile, red litmus paper, blue litmus paper, Universal indicator solution and safety glasses.
Method:
1 - Add a few drops of each chemical to a spot on your spotting tile if a substance tile. If a substance is solid or powdered you will need to mix it with.
2 - Test the chemicals with litmus papers blue and red.
3 - Test each chemical with a few drops of universal indicator.
Discussion:
When we used toilet cleaner with the blue litmus it turned the litmus red instead of blue, this shows us that toilet cleaner is an acid because red shows that its a acid because it is at the bottom of the ph scale also known as 1 . But when we used universal indicator it went yellow/orange which is just before green on the ph scale so this could be from 3-5.
When you test blue or red litmus paper it can only turn from an acid or base no in between so either blue or red. But if you were to use universal indicator it could go from any scale of the ph scale so it could be neutral or from anywhere between 1 - 14.
Results:
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