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Phenolphthalein turns pink in the presence of a base or any solution with a ph over 7.
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∙ 8y ago
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When you add an acid to an alkali it changes to a neutral which colour change would this show with an indicator?
It depends on the indicator and there are quite a few. Methyl Red, Methyl orange and Phenolphthalein are 3 such acid-base indicators. If phenolphthalein is used as the indicator and added to the base it would immediately turn red/pink. As acid is titrated in, the red/pink will disappear and go colorless.
What is the pH if solution makes phenolphthalein stay clear?
your unknown solution made methyl red turn yellow. it also made phenolphthalein stay clear. what rang of pH does your unknown solution have?
Do bases turn phenolphthalein clear?
no, acids do
What is the color of phenol red at acidic pH?
Very strong acid solutions that have phenolphthalein added to them turn orange, but in general acidic solutions with phenolphthalein are colorless. If the solution is titrated to slightly basic (pH > 8.2) it will turn pink. Note that in extremely basic solutions (pH > 13) it will revert to colorless again.
What is the colour of phenolphthalein in salt water?
It will turn purple
Why does Phenolphthalein turn pink in potassium hydroxide solution?
phenolphthalein is a weak acid, when reacting with strong alkali it turns pink
What color does NaoH turn when phenolphthalein?
Pink
Do bases turn phenolphthalein pink?
No, acids do
When does phenolphthalein turn pink?
Phenolphthalein in acidic titrations,turns colorless and pink in basic solutions.
Will acids turn phenolphthalene indicator pink?
No, phenolphthalein turns colourless when it comes into contact with an acid. It only turns magenta with a base (alkali)
When phenolphthalein is added to ammonium hydroxide is the color of the final solution is pink?
Phenolphthalein is an indicator often used in chemical titrations. Phenolphthalein is colorless in acidic solutions and turns pink in basic solutions. The more basic the solution the pinker the solution will become when Phenolphthalein is present.
What happens when you mix Sodium hydroxide and phenolphthalein?
it will turn pink. phenophathaline turns pink in alkaline ph
Phenolphthalein solution is used as an indicator of acids and bases. If added to an ammonia-based solution of window cleaner we would expect the solution to turn?
As ammonia solution is alkaline, about pH 11 - 12, the phenolphthalein will turn pink.
What would happen if I placed a Vial of phenolphthalein into a jar with ammonia?
Nothing will happen... but when you put a drop of the vial in the phenolphthalein, the phenolphthalein will turn into pink... It was just an observation that I saw in our experiment this afternoon
When you add an acid to an alkali it changes to a neutral which colour change would this show with an indicator?
It depends on the indicator and there are quite a few. Methyl Red, Methyl orange and Phenolphthalein are 3 such acid-base indicators. If phenolphthalein is used as the indicator and added to the base it would immediately turn red/pink. As acid is titrated in, the red/pink will disappear and go colorless.
Will phenolphthalein turn pink in coca-cola?
No, Coke would have to have a PH of more than 10 to turn pink. Coke only has a PH of 3
Can phenolpthalein solution be used to prove that toothpaste is a base?
Phenolphthalein changes from colorless to pink in the range of pH 8.2 - 10. If toothpaste has a pH that is below this range, phenolphthalein will not indicate the basicity. if the pH is higher, which I believe it is in most (some) toothpastes, then phenolphthalein can be used, because it will turn from colorless to pink.
