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There are three acid-base indicators. Me...

There are three acid-base indicators. Methyl orange (end point at `pH=4`), bromothymol blue (end point at `pH-7`), phenolphthalein (end point at `pH=9`). Which is the most suitable indicator for the following titrations?
(a). `H_2SO_4` with KOH
(b). KCn with HCl
(c). `NH_3` with `HNO_3`
(d). HF with NaOH

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(a). Strong acid and strong base: any indicator can be used.
(b). Strong acid and salt of weak acid and strong base: Methyl orange is suitable.
(c). Weak base and strong acid: Methyl orange
(d). Strong base and weak acid: Phenolphthalein.
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There are three acid-base indicators: methy 1 orange (end point at pH = 4) , bromothymol blue (end point pH = 7) , and phenolphthalein (end point at pH = 9) . Which of the following would you select for the titrations? a. H_(2)SO_(4) with KOH b. KCN with HCI c. NH_(3) with HNO_(3) d. HF with NaOH

What indicators will be suitable for the following acid-base titrations: a. HCOOH against NaOH b. HBr against KOH c. NH_(4)OH with HNO_(3)

(A) In general phenolphthalein is used as an indicator for the titration of weak acid (CH_(3)COOH) and strong base (NaOH). (R) At equivalence point solution is basic.

A weak base MOH was titrated against a strong acid. The pH at 1/4 the equivalence point was 9.3. What will be the pH at 3/4 th equivalence point in the same titration? (log3=0.48)

In acid-base titration react rapidly to neutralise each other. Equivalence point is a point at which the acid and the base (or oxidising agent and reducing agent) have beem added in equivalent quantities. The end point in the point at which the titration stops. since the purpose of the indicator is to stop the titration close to the point at which the acid and base were added in equivalent quantities, it is important that the equivalent point and the end point be as close as must change colour at a pH close to that of a solution of the salt of the acid base. Singificantly, the pH changes most rapidly near the equivalent point. The exact shape of a titration curve depends on K_(a) and K_(b) of acid and base. The suitable indicator for the titration is

In acid-base titration react rapidly to neutralise each other. Equivalence point is a point at which the acid and the base (or oxidising agent and reducing agent) have beem added in equivalent quantities. The end point in the point at which the titration stops. since the purpose of the indicator is to stop the titration close to the point at which the acid and base were added in equivalent quantities, it is important that the equivalent point and the end point be as close as must change colour at a pH close to that of a solution of the salt of the acid base. Singificantly, the pH changes most rapidly near the equivalent point. The exact shape of a titration curve depends on K_(a) and K_(b) of acid and base. The pH at equivalence point is

In acid-base titration react rapidly to neutralise each other. Equivalence point is a point at which the acid and the base (or oxidising agent and reducing agent) have beem added in equivalent quantities. The end point in the point at which the titration stops. since the purpose of the indicator is to stop the titration close to the point at which the acid and base were added in equivalent quantities, it is important that the equivalent point and the end point be as close as must change colour at a pH close to that of a solution of the salt of the acid base. Singificantly, the pH changes most rapidly near the equivalent point. The exact shape of a titration curve depends on K_(a) and K_(b) of acid and base. The curve represents the titration of

In acid-base titration react rapidly to neutralise each other. Equivalence point is a point at which the acid and the base (or oxidising agent and reducing agent) have beem added in equivalent quantities. The end point in the point at which the titration stops. since the purpose of the indicator is to stop the titration close to the point at which the acid and base were added in equivalent quantities, it is important that the equivalent point and the end point be as close as must change colour at a pH close to that of a solution of the salt of the acid base. Singificantly, the pH changes most rapidly near the equivalent point. The exact shape of a titration curve depends on K_(a) and K_(b) of acid and base. The following curve represents titration curve of HCI against KOH . The pH at equivalent point is Examine the titration curve below and answer the question.

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