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Why is phenolphthalein used in titration of weak acid instead of methyl orange?
Phenolphthalein is preferred in titration of weak acids because its color change occurs within a pH range of 8.2 to 10, making it ideal for detecting the endpoint of weak acid-strong base titrations. Methyl orange, on the other hand, changes color over a pH range of 3.1 to 4.4, which is not suitable for accurately titrating weak acids.
Why titrations of weak acids and weak bases are not done?
It is difficult to determine the end point of such a titration, because the titration produces a buffer solution that changes its pH very slowly at the end point, in contrast to reaction between a strong acid and strong base.
What are the advantages of potentiometric titrations?
the advantages of potentiometric titration are that it gives a sharp end point in every case, apparatus used is not sophisticated thus easy to handle . disadvantage is its high temperature dependance.
What are the type of conductometric titration?
The types of conductometric titrations include strong acid-strong base titrations, weak acid-strong base titrations, weak base-strong acid titrations, and precipitation titrations. Conductometric titrations measure the change in electrical conductivity of a solution as a titrant is added, allowing for the determination of the endpoint of the reaction.
What is the pH at the endpoint of a titration?
The pH at the endpoint of a titration depends on the nature of the acids and bases involved. Usually, for a strong acid-strong base titration, the pH at the endpoint is around 7 due to the neutralization of the acid and base. For weak acid-strong base titrations, the pH may be greater than 7, while for weak base-strong acid titrations, the pH may be less than 7.
Why is phenolphthalein used in titration of weak acid instead of methyl orange?
Phenolphthalein is preferred in titration of weak acids because its color change occurs within a pH range of 8.2 to 10, making it ideal for detecting the endpoint of weak acid-strong base titrations. Methyl orange, on the other hand, changes color over a pH range of 3.1 to 4.4, which is not suitable for accurately titrating weak acids.
Are acids used strong or weak?
acids are of types.....concentrated acids are strong.
Why titrations of weak acids and weak bases are not done?
It is difficult to determine the end point of such a titration, because the titration produces a buffer solution that changes its pH very slowly at the end point, in contrast to reaction between a strong acid and strong base.
What are the advantages of potentiometric titrations?
the advantages of potentiometric titration are that it gives a sharp end point in every case, apparatus used is not sophisticated thus easy to handle . disadvantage is its high temperature dependance.
What are the type of conductometric titration?
The types of conductometric titrations include strong acid-strong base titrations, weak acid-strong base titrations, weak base-strong acid titrations, and precipitation titrations. Conductometric titrations measure the change in electrical conductivity of a solution as a titrant is added, allowing for the determination of the endpoint of the reaction.
What is the pH at the endpoint of a titration?
The pH at the endpoint of a titration depends on the nature of the acids and bases involved. Usually, for a strong acid-strong base titration, the pH at the endpoint is around 7 due to the neutralization of the acid and base. For weak acid-strong base titrations, the pH may be greater than 7, while for weak base-strong acid titrations, the pH may be less than 7.
What is true about weak acids as compared to strong acids?
Weak acids have a larger value of pKa than strong acids
What is the term that describes acids which give a low concentration of hydronium ions?
Such acids are considered weak acids, such as organic acids.
Why redox titration is more useful than acid base titration?
Redox titrations can be used to quantify substances that do not react with acids or bases, such as reducing agents. This makes redox titrations more versatile in terms of the types of substances that can be analyzed compared to acid-base titrations. Additionally, redox titrations are more sensitive and can provide more precise results in certain cases.
What are the two kinds of weak acids?
The two kinds of weak acids are organic weak acids, which contain carbon atoms, and inorganic weak acids, which do not contain carbon atoms. Organic weak acids include acetic acid and citric acid, while inorganic weak acids include hydrofluoric acid and hydrogen sulfide.
What is methly orange?
Methyl orange is a pH indicator frequently used in titrations. It is often chosen to be used in titrations because of its clear colour change. Because it changes colour at the pH of a mid-strength acid, it is usually used in titrations for acids. Unlike a universal indicator, methyl orange does not have a full spectrum of colour change, but has a sharper end point. Check out the Related Link for more details.
What are the differences in properties and behavior between a weak acid and a strong acid?
Weak acids and strong acids differ in their properties and behavior. Weak acids partially dissociate in water, while strong acids fully dissociate. This means weak acids have lower conductivity and pH compared to strong acids. Additionally, weak acids have higher equilibrium constants and are less reactive than strong acids.
