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Acids, bases and salt
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07/09/2021 12:43 pm
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Here are some results of solutions tested with universal indicator paper:
Sulphuric acid: Red
Metal polish: Dark blue
Washing-up liquid: Yellow
Milk of magnesia: Light blue
Oven cleaner: Purple
Car battery acid: Pink
Arrange the solutions in order of their increasing pH values (starting with the one with the lowest pH).
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07/09/2021 12:43 pm
Sulphuric acid < car battery acid < washing up liquid < milk of magnesia < metal polish < oven cleaner since:
Red : pH = 1
Pink : pH = 3-4
Yellow: pH = 5-6
Light blue : pH = 9
Dark blue : pH = 10
Purple: pH = 11