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Why does the indicator goes purple in sodium hydroxide solution?
The purple color in sodium hydroxide solution is an indicator of the presence of phenolphthalein, which turns pink in basic solutions. When phenolphthalein is added to sodium hydroxide solution, it reacts with the hydroxide ions in the solution to form the purple color.
Why does sodium hydroxide and phenolphthalein mixture turn clear when carbon dioxide is added?
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.
What colour would a mixture thymol blue and phenolphthalein go if sodium hydroxide was added?
The mixture would turn from yellow to blue as the pH increases with the addition of sodium hydroxide. Thymol blue changes color from yellow to blue in basic solutions, while phenolphthalein remains colorless in basic solutions.
When just enough acid has been added to neutralize the sodium hydroxide what colour will the indicator be?
The indicator will change color to indicate when just enough acid has been added to neutralize the sodium hydroxide. For example, phenolphthalein will turn colorless in an acidic solution, indicating that the base has been neutralized.
What is the name of the salt formed when sodium hydroxide is added to nitric acid?
The salt formed when sodium hydroxide is added to nitric acid is sodium nitrate (NaNO3).
What happen when sodium hydroxide is added drop wise to a solution containing phenolphthalein?
When sodium hydroxide is added dropwise to a solution containing phenolphthalein, the solution will initially remain colorless. Once enough sodium hydroxide has been added to make the solution basic, the color will change from colorless to pink or purple, indicating the presence of hydroxide ions. Phenolphthalein is a pH indicator that changes color in the presence of a base.
Why does the indicator goes purple in sodium hydroxide solution?
The purple color in sodium hydroxide solution is an indicator of the presence of phenolphthalein, which turns pink in basic solutions. When phenolphthalein is added to sodium hydroxide solution, it reacts with the hydroxide ions in the solution to form the purple color.
Why does sodium hydroxide and phenolphthalein mixture turn clear when carbon dioxide is added?
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.
What will be the color of phenolphthalein when added to a solution of hydroxide?
Phenolphthalein will turn pink or magenta in color when added to a basic solution containing hydroxide ions.
What happens when sodium hydroxide is added dropwise to solution containg phenolphthalein?
When sodium hydroxide is added dropwise to a solution containing phenolphthalein, the solution will gradually turn pink as the pH increases. This color change is due to the phenolphthalein molecule shifting from its colorless form in acidic conditions to its pink form in basic conditions.
What colour would a mixture thymol blue and phenolphthalein go if sodium hydroxide was added?
The mixture would turn from yellow to blue as the pH increases with the addition of sodium hydroxide. Thymol blue changes color from yellow to blue in basic solutions, while phenolphthalein remains colorless in basic solutions.
When just enough acid has been added to neutralize the sodium hydroxide what colour will the indicator be?
The indicator will change color to indicate when just enough acid has been added to neutralize the sodium hydroxide. For example, phenolphthalein will turn colorless in an acidic solution, indicating that the base has been neutralized.
What happen when sodium hydroxide is added to phenophathalen?
The color of phenolphtalein in basic medium is "fuchsia".
What liquid turns pink when Sodium Bicarbonate is added?
phenolphthalein
What happen when 2.5M Na OH was added to aniline?
Aniline doesn't react with sodium hydroxide.
Does sodium hydroxide release protons when added to water?
No. Sodium hydroxide releases hydroxide ions, which actually take protons out of the solution. This qualifies sodium hydroxide as a base.
What is the name of the salt formed when sodium hydroxide is added to nitric acid?
The salt formed when sodium hydroxide is added to nitric acid is sodium nitrate (NaNO3).
