we can prepare phenol phtahaline in lap from;
1-salicylic acid by:
part of salysilic acid pw+phthalic anhydride+c.h2so4(heat&fusion) ـ<ــــــــــــــــــــــــــthen cool&pour in 10%NaOH.............>PINK COLOR...
or:
2-by phenol... by the same method...
3-or by resorcinol by the same method...
Scientists have learned how to synthesize new elements. The ability to synthesize human tissues is a great medical advance.
Yes, phenolphthalein is a compound with the molecular formula C20H14O4.
Phenolphthalein is colorless in sulfuric acid.
Alkalis turn phenolphthalein pink or magenta.
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.
NaOH turns pink when phenolphthalein is added.
Phenolphthalein turns pink in a basic solution.
Phenolphthalein is an indicator often used in chemical titrations. Phenolphthalein is colorless in acidic solutions and turns pink in basic solutions. The more basic the solution the pinker the solution will become when Phenolphthalein is present.
Nothing will happen... but when you put a drop of the vial in the phenolphthalein, the phenolphthalein will turn into pink... It was just an observation that I saw in our experiment this afternoon
Phenolphthalein turns pink in a base and turns colourless in a base
Phenolphthalein turns pink in a basic solution.
Phenolphthalein is colorless in acidic solutions but turns pink or purple in basic solutions because the hydroxide ions in the basic medium react with phenolphthalein to form a pink-colored compound. This color change is due to a shift in the chemical structure of phenolphthalein when exposed to a basic environment.