if concentration is particularly strong then it became purple
It should be clear. Phenolphthalein doesn't change color in the presence of an acid, only a base.
When you mix HCl (hydrochloric acid) and phenolphthalein, the phenolphthalein will turn colorless because the strong acid protonates it, resulting in the loss of its pink color. This change in color indicates the presence of an acidic solution.
It would turn pink. Phenolphthalein is an acid-base indicator that turns pink in the presence of a base like ammonia.
NaOH turns pink when phenolphthalein is added.
No, ammonia does not turn phenolphthalein pink. Phenolphthalein is a pH indicator that turns pink in basic solutions, but ammonia is a weak base and typically does not have a strong enough pH to turn phenolphthalein pink.
It should be clear. Phenolphthalein doesn't change color in the presence of an acid, only a base.
When you mix HCl (hydrochloric acid) and phenolphthalein, the phenolphthalein will turn colorless because the strong acid protonates it, resulting in the loss of its pink color. This change in color indicates the presence of an acidic solution.
When you mix calcium hydroxide and phenolphthalein, the solution will turn pink or magenta in color. This color change indicates that the solution is basic, as calcium hydroxide is a strong base. Phenolphthalein is a pH indicator that changes color in the presence of bases.
It would turn pink. Phenolphthalein is an acid-base indicator that turns pink in the presence of a base like ammonia.
NaOH turns pink when phenolphthalein is added.
No, ammonia does not turn phenolphthalein pink. Phenolphthalein is a pH indicator that turns pink in basic solutions, but ammonia is a weak base and typically does not have a strong enough pH to turn phenolphthalein pink.
Ammonia will turn pink when phenolphthalein is added, indicating that the solution is basic.
The color is pink with phenolphthalein.
Phenolphthalein will turn pink or magenta in color when added to a basic solution containing hydroxide ions.
Phenolphthalein would turn pink in a borax solution, indicating the solution is basic. Borax acts as a weak base in solution and would cause phenolphthalein to change color due to its alkaline nature.
No, bases turn phenolphthalein pink or purple in color. Phenolphthalein is colorless in acidic solutions and turns pink in basic solutions with a pH higher than around 8.2.
If phenolphthalein is added to HBr (hydrobromic acid), which is a strong acid, the phenolphthalein indicator will remain colorless because it only changes color in the presence of a base. Since HBr is an acid, it will not cause the indicator to change color.