pH and Indicators Word Scramble
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Question | Answer |
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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