answersLogoWhite

0


Best Answer

Carbon dioxide dissolves in the aqueous solution to produce carbonic acid. The carbonic acid dissociates to produce the carbonate ion and two protons. The protons reacts with the hydroxide provided by the already dissociated sodium hydroxide to produce water. The sodium carbonate is fairly soluble and stays in solution. Since the hydroxide ion is depleted, the phenolphthalein reverts from pink to clear as it does in solutions with a pH less than 8.3.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why does sodium hydroxide and phenolphthalein mixture turn clear when carbon dioxide is added?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How does phenolphthalein show carbon dioxide?

The solution of carbon dioxide in water is colorless.


What is solubility value of carbon dioxide in sodium hydroxide?

Carbon dioxide react with sodium hydroxide.


How do you find solubility of carbon dioxide in sodium hydroxide?

Carbon dioxide react with sodium hydroxide.


How do you find solubility value of carbon dioxide in sodium hydroxide?

Carbon dioxide react with sodium hydroxide.


What is the chemical reaction of phenolphthalein and sodium hydroxide?

the solution will turn into pink(which will gradually fade afterwards because carbon dioxide is present in the air that neutralizes the color effect of the hydroxide..


Is carbon dioxide a homogenous mixture?

No, carbon dioxide is not a mixture. It is a pure substance.


Is carbon dioxide a heterogeneous mixture or homogeneous mixture?

Carbon Dioxide is not a mixture. It is a chemical compound composed of two oxygen atoms and one carbon atom.


Reaction of NaOH and carbon dioxide in water?

When carbon dioxide is added to water containing sodium hydroxide carbonate ions are formed but the excess of carbon dioxide produces bicarbonate ions on evaporation a mixture of sodium carbonate and sodium bicarbonate is obtained.


Which chemical can absorb carbon dioxide?

sodium hydroxide or potasium hydroxide


What substances absorb CARBON DIOXIDE?

Potassium Hydroxide can be used to absorb carbon dioxide from the air.


What is the chemical that can absorb carbon dioxide?

Carbon dioxide is absorbed in calcium hydroxide and other hydroxides.


How do you make an easy carbon dioxide filter?

Sodium hydroxide granules absorb carbon dioxide.