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2 cards from this section. Quick, good the night before a test.
What color does a universal indicator turn in a strongly acidic solution?
Think about the signification of low pH.
What is a neutral pH level?
It’s the midpoint of the pH scale.
What is the pH range covered by a universal indicator?
Remember the extremes of the pH scale.
True or False: A universal indicator provides exact pH values.
Consider the meaning of 'approximate'.
A sample with a universal indicator shows a color change to green. Estimate the pH range represented.
Consider where green falls on the pH spectrum.
During an experiment, a student observes a transition from yellow to green when adding a base to an acid. Explain this color transition in terms of chemical principles.
Think about acid-base neutralization.
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