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What colour does phenolphthalein change to when it reacts with and alkaline solution?
Wiki User
∙ 11y ago
Purple/Pink
Wiki User
∙ 11y ago
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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 is the function of alkaline solution in Biuret's test?
Alkaline levels are essential for the solution to change colour. Without alkaline levels, the colour of the solution would not be detectable.
Why does phenolphthalein change color in alkaline pH?
Phenolphthalein is a compound with chemical formula of C20 H14 O4. It is colorless but turns pink in alkaline solutions. This is because it undergoes a process of ionization where positively or negatively charged ions are added or removed from a molecule, which converts the molecule into ions. Phenolphthalein molecule contains positively charged hydrogen ions and is naturally colorless with bright pink ions. When exposed to an alkaline solution, these hydrogen ions are removed, phenolphthalein molecule gets ionized and the solution turns pink. The stronger is the alkali solution, more hydrogen ions removed and stronger pink colour of the phenolphthalein solution.
What is the original colour of phenolphthalein?
Orange. It turns colourless in acids and pink in alkaline.
When a drop of phenolphthalein is introduced in lime water the solution turns?
When a drop of phenolphthalein is introduced in lime water the solution turns pink in colour.
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 is the function of alkaline solution in Biuret's test?
Alkaline levels are essential for the solution to change colour. Without alkaline levels, the colour of the solution would not be detectable.
Why does phenolphthalein change color in alkaline pH?
Phenolphthalein is a compound with chemical formula of C20 H14 O4. It is colorless but turns pink in alkaline solutions. This is because it undergoes a process of ionization where positively or negatively charged ions are added or removed from a molecule, which converts the molecule into ions. Phenolphthalein molecule contains positively charged hydrogen ions and is naturally colorless with bright pink ions. When exposed to an alkaline solution, these hydrogen ions are removed, phenolphthalein molecule gets ionized and the solution turns pink. The stronger is the alkali solution, more hydrogen ions removed and stronger pink colour of the phenolphthalein solution.
What is the colour of phenolphthalein in aspirin solution?
The solution is colourless.
What is the original colour of phenolphthalein?
Orange. It turns colourless in acids and pink in alkaline.
What is the colour change of litmus paper in a basic alkaline solution is?
blue and purple
When a drop of phenolphthalein is introduced in lime water the solution turns?
When a drop of phenolphthalein is introduced in lime water the solution turns pink in colour.
Why there is no colour change when phenolphthalein is added to the oxalic acid?
In a weak acid solution phenophthalein has the "lactone" form which hasn't color.
When a drop of phenolphthalein is introduced in barium hydroxide the solution turns what colour?
Phenolphthalein is pink in a basic environment.
What colour is made by mixing phenolphthalein and sulphuric acid?
The solution is colorless.
What is the colour of phenolphthalein in salt water?
It will turn purple
What colour changes will appear when phenolphthalein is mixed with sodium chloride solution?
Sodium Chloride is neutral. And Phenolphthalein is colourless when neutral.
