When phenolphthalein is added to a basic solution what happens?

Answer 1

pink

Answer 2

That really depends on the strength of the acid, the antacid, and how much of each are present in a mixture. Phenolphthalein is a pink in the presence of higher strength bases (pH > 8.2), orange in the presence of very strong acids (pH < 0), and colorless between pH 0 and 8.2, as well as above 12. If your acid and antacid is combined in a single mixture, the color will depend on the ratio of acid and antacid, taking into account the strength of both the acid and the antacid. If you have significantly more antacid than acid, chances are that it will be pink (unless you're using a strong base like sodium hydroxide for your antacid, at which point it will be colorless), while if you have more acid than antacid, it'll be colorless (unless your acid is a superacid such as fluoroantimonic acid, which there's no reason why you would be using it).

Answer 3

Pheniphthalein turns pink in basic medium. If the solution with containing phenolphthalein is basic, the pink color of the solution decreases when hydrochloric acid is added. If the solution is acidic, no color change will occur.

Answer 4

Phenolphthalein turns pink or purple in a basic solution. This color change is due to the increase in pH causing the phenolphthalein molecules to undergo a chemical change, resulting in a visible color change.

Answer 5

If phenolphthalein is added to an acidic solution, it will turn a magenta color whereas if it's added to a basic solution, it will turn colorless

Answer 6

You won't see anything. Pheolphtalein is colourless in acid (vinegar has acetic acid in it).

Answer 7

Phenolphthalein is added to a basic solution is colorless.

Answer 8

Phenolphthalein goes clear in acid

Answer 9

Any colour