When does phenolphthalein turn pink?

Answer 1

At a #pH# of around about #8#.........

One of the best indicators to visualize is phenolphthalein. In an acidic solution with a pH of 0–8, the solution is colorless; at a pH of 8.2, the color changes to pink or fuchsia.

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Answer 2

Phenolphthalein turns pink when the solution it is in becomes basic, typically at a pH of around 8.2 to 10.0.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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