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It turns blue in the presence of Fe2+, and can be used to check for possible oxidation/rust

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Why potassium ferricyanide cannot be used as internal indicator?

Potassium ferricyanide cannot be used as an internal indicator because it is an external indicator that does not change color in response to pH changes in a solution. Internal indicators are usually weak organic acids or bases that change color due to ionization changes as the pH of the solution shifts.


What is the iupac and common name for potassium ferricyanide indicator?

The official IUPAC name is potassium hexacyanoferrate. The formula is:K3[Fe(CN6)]


What is the charge of potassium ferricyanide?

Charges: Potassium = +1 Ferricyanide = -3


What compound occurs with ferricyanide and lithium?

The chemical formula of lithium ferricyanide is L3[Fe(CN6].


How many ions in potassium ferricyanide?

4. K3, 1 Ferricyanide.


What is the chemical formula for ferric ferricyanide?

This chemical formula of the ferricyanide anion is [Fe(CN)6]3.


What is the charge on the cyanide ion in ferricyanide?

-1


Why k3fecn6 used as an external indicator?

K3Fe(CN)6, also known as potassium ferricyanide, is often used as an external indicator in redox titrations because of its distinct color change. It turns from yellow to colorless upon reaction with excess titrant, making it easy to visually detect the endpoint of the titration.


What is the valency of Ferricyanide?

The valency of ferricyanide is -3. It contains one iron (III) cation with a valency of +3 and one cyanide anion with a valency of -1.


What is the molecular weight of potassium ferricyanide?

329.244 g/mol


What are the products of potassium nitrate and potassium ferricyanide?

The reaction between potassium nitrate and potassium ferricyanide does not involve a direct single displacement or double displacement reaction. Hence, no specific products can be predicted for this combination.


What is meant by External Indicator used in titration?

An external indicator in titration is a substance that is added in small amounts to the analyte solution during titration to signal the endpoint of the reaction. It changes color at or near the equivalence point, making it easier for the observer to detect when the reaction is complete. Common examples of external indicators include phenolphthalein and methyl orange.