WebPhenolphthalein is an example of another acid-base indicator, and it has a different pH range. At a pH of about eight, phenolphthalein is colorless. However, as the pH changes … WebSep 8, 2024 · Nothing will happen beacause: Phenolphthalein is an acid/base indicator. It is colorless when it is an acid and pink when it is a base. Does phenolphthalein increase pH? Phenolphthalein is naturally colorless but turns pink in alkaline solutions. The compound remains colorless throughout the range of acidic pH levels but begins to turn pink at ...

What is the purpose of phenolphthalein in this experiment?

WebFeb 2, 2024 · Phenolphtalein Solution The correct answer is C. In the titration of a weak acid with a strong base, the conjugate base of the weak acid will make the pH at the … WebSep 8, 2024 · The molecular formula of phenolphthalein is C 20 H 14 O 4 and has a molecular mass of 318.3. As phenolphthalein is in its acidic form, the solution of … symptom brain tumour

acid-base indicators - chemguide

WebUses. Phenolphthalein is commonly used as a chemical indicator, which turns from colorless to pink in the range of 8–10 pH, which makes it ideal for the titration of strong acids, such as hydrochloric acid. Phenolphthalein is used as a laxative to treat incomplete and infrequent bowel movement. In such cases, it is used to empty the bowels. WebPhenolphthalein's production and use as an acid/base indicator, as a laboratory reagent, and its former use as a laxative may result in its release to the environment through … WebPhenolphthalein ( / fɛˈnɒl ( f) θəliːn / [citation needed] feh-NOL (F)-thə-leen) is a chemical compound with the formula C 20 H 14 O 4 and is often written as " HIn ", " HPh ", " phph " or simply " Ph " in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless ... thai cave rescue summary