Let's add some base to this HCl solution that contains a couple drops of phenolphthalein.
Adding base causes the solution to turn pink. But we need to mix it some more.
The equivalence point is when the color persists for about a minute.
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Let's add some base to this HCl solution that contains a couple drops of phenolphthalein. |
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Adding base causes the solution to turn pink. But we need to mix it some more. |
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The equivalence point is when the color persists for about a minute. |
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