What is the colour of phenolphthalein in dilute HCl and dilute NaOH?

Phenolphthalein remains colourless in neutral or acidic solution but turns out magenta or pink in basic solutions. When it is added to NaOH, the solution has the colour of pink since sodium hydroxide is a strong base.

What happens when HCl is added to NaOH and phenolphthalein?

On adding nearly 5 mL sodium hydroxide solution to the mixture of hydrochloric acid and phenolphthalein solution, the colour of the mixture changes to pink. Phenolphthalein indicator remains colourless in the acidic solution while its colour changes to pink in basic solution.

What color if any will phenolphthalein appear in the presence of HCl?

Phenolphthalein is an indicator which is colourless in acidic medium and pink in basic medium. Since Hydrochloric acid is an acid,the solution will turn Colourless.

What is the color of phenolphthalein in excess NaOH?

When we add HCl to NaOH we get sodium chloride (NaCl) salt which has a neutral nature. Thus no acidic salt shall be produced. But on adding excess HCl to NaOH the overall solution becomes acidic and the the phenolphthalein indicator becomes colourless.

When few drops of phenolphthalein is added to a dilute solution?

When few drops of phenolphthalein are added to a dilute solution hydroxide a pink colour is produced.

What happens when phenolphthalein is added in excess?

Phenolphthalein is a weak acid, which is why when it is added to a strong base, it gives a pink color and the color intensifies as the pH of the base increases.

What happens when HCL mix with phenolphthalein?

Phenolphthalein is a weak acid, which is why when it is added in a strong base, it gives pink color and the color gets intense as the PH of the base increases. By adding HCL in the solution, the pink color of phenolphthalein will disappear. This is also called Acid- Base Titration.

What happens when acid reacts with phenolphthalein?

Phenolphthalein is an indicator — a chemical which changes colour depending on whether it meets an acid or a base. It turns purple if it meets something basic, such as ammonia; it stays colourless if it meets an acid like vinegar or a neutral substance like water. The phenolphthalein becomes colourless.

When few drops of phenolphthalein is added to a solution having pH 8.5 then the colour?

What will be the change in the colour when a few drops of phenolphthalein is added to a solution – Brainly.in.

What is the colour of phenolphthalein in dilute na2so4?

Answer: No change . It becomes colourless..

Why does phenolphthalein indicator become colourless when added to NaOH?

Thus no acidic salt shall be produced. But on adding excess HCl to NaOH the overall solution becomes acidic and the the phenolphthalein indicator becomes colourless. This is because the alkali (NaOH) has been completely neutalised but acid (HCl) remains in the solution (since it had been added in excess).

Which salt is formed when Phenolphthalein is added to NaOH?

Phenolphthalein solution becomes colourless in acidic medium whereas it shows a light pink colour in presence of an alkali. When we add HCl to NaOH we get sodium chloride (NaCl) salt which has a neutral nature. Thus no acidic salt shall be produced.

What happens when HCL is added to NaOH?

When we add HCl to NaOH we get sodium chloride (NaCl) salt which has a neutral nature. Thus no acidic salt shall be produced. But on adding excess HCl to NaOH the overall solution becomes acidic and the the phenolphthalein indicator becomes colourless.

Why does phenolphthalein turn pink in an alkaline solution?

Also, it turns in pink colour in an alkaline solution or base. Moreover, the compound remains colourless in acids but starts to turn pink on pH 8.2 and continues to turn bright purple in strong bases. Ionization is the process that is responsible for the colour change of the compound (Phenolphthalein).