Phenolphthalein is colorless in an acidic solution. In an acidic solution, the benzoid form of phenolphthalein exists. In the benzoid form of...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tou...
Phenolphthalein has a pKa of 9.7 and is colorless in its acid form and pink in its basic form. Calculate [In-]/[HIn] and predict the color of the phenolphthalein solution at: a. pH=4.7 b. pH= 8.2 Phenolphthalein has a pKa of 9.7 ...
acid is put into a burette and added to the solution in the conical flask until an end-point is reached.Phenolphthalein is colourless in acidic solution and pink in alkaline solution.What is the colour of the solution in the conical flask(i) before the acid is added(ii) at the end-...
Phenolphthaleinis a colourless, weak acid which dissociates in water forming pink anions. Under acidic conditions, the equilibrium is to the left,and the concentration of the anions is too low for the pink colour to be observed. How does EDTA react with calcium? As a result, whenthe calcium...
is favoured in presence of alkali and pink colour of phenolphthalein ion is noticed as soon as the medium changes to alkali nature. The end point of acid-base neutralisation not necessarily coincides with eqivalence point but it is closer to equivalence point. Also at equivalence point of acid...
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How is titration used in acid rain? Acid rain is rainfall whose pH is less than 5.6, the value typically observed, due to the presence of dissolved carbon dioxide. ... The equivalence point of an acid–base titration is the point at which exactly enough acid or base has been added to ...
What will be the color of a nitric acid solution when the indicator phenolphthalein is added? What does the color indicate about the strength of an acid or base? Which of the following statements does not correctly describe a basic solution? a) The solution has a pH less than...
Phenolphthalein is the most widely used indicator in titration specifically acid-base titration that is usually carried out for the determination of the concentration of the sample. Some of the characteristics of phenolphthalein include its higher solubility in alcohol...
To solve the question, we need to analyze the assertion (A) and the reason (R) given in the problem:Assertion (A): In the titration of strong acid and strong base, phenolphthalein is used as a suitable indicator.