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4 cards from this section. Quick, good the night before a test.
What color does litmus paper turn in acid?
Think about the color change indicated in acid.
What is the color of phenolphthalein in a basic solution?
Consider how it reacts in a basic environment.
What color does litmus paper turn in acidic solutions?
Recall the common property of indicators with acidity.
True or False: Phenolphthalein is colorless in acidic solutions.
Remember how phenolphthalein behaves in different pH levels.
You have three solutions: one acidic, one basic, and one neutral. You only have litmus paper and phenolphthalein as indicators. Describe how you would test each solution and what results you would expect.
Think about the color changes each indicator indicates.
In a titration experiment, the endpoint is very difficult to observe. If you were to switch from phenolphthalein to a different indicator, which one would you select to give clearer results and why?
Consider indicators that change at lower pH levels.
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