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pH and Indicators

QuestionAnswer
Define pH The negative logarithm to base ten of the hydrogen ion concentration of a solution in moles per litre
Limitations of the pH scale (3) Limited range even though other values are possible. Does not apply to very concentrated solutions. Limited to aqueous solutions.
Define acid-base indicator A substance which changes colour according to the pH of the solution its in
Define the range of an indicator The pH interval for which there is a clear change of colour
What indicator should be used for a strong acid against a strong base? Litmus, methyl orange, or phenolphthalein
What indicator should be used for a strong acid against a weak base? Methyl orange
What indicator should be used for a weak acid against a weak base? No suitable indicator
What indicator should be used for a strong base against a weak acid? Phenolphthalein
Created by: JackEatonK98
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