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Why does pnitrophenol react with NaOH and not HCl?
NaOH is a strong base so it abstracts the proton from p-nitrophenol resulting in the formation of p-nitrophenoxide ion and water, but HCl is a strong acid so its conjugate base (Chloride ion) if in-case abstracts the proton from p-nitrophenol the resulting p-nitrophenoxide will accept the proton released from acid and again changes into p-nitrophenol, so there will not be any effect. Simply p-nitrophenol is also a weak acid & there will not be any reaction of it with strong hydrochloric acid.
Colour changes of p- nitrophenol in acid and basic media?
In acidic media, p-nitrophenol is colorless. When a base is added, p-nitrophenol changes to a yellow color due to the deprotonation of the phenolic -OH group, forming the anionic form of p-nitrophenol.
What is the reaction of p-anisidine with hydrochloric acid?
The reaction of p-anisidine with hydrochloric acid involves protonation of the nitrogen atom in the aniline ring to form a stable ammonium salt. This results in the formation of a water-soluble salt that can be isolated as a solid precipitate upon addition of a suitable base.
Is p-nitrophenol an enzyme?
No, p-nitrophenol is not an enzyme. It is a chemical compound that is often used in biochemical research as a substrate for enzyme assays.
How do you convert chloro benzene to p-nitro phenol?
I'd do it this way. Use Dow's Process (NaOH) to convert chlorobenzene to phenol. Now, use nitrating mixture to get both o and p- nitrophenol. Fractional distillation should give you what you finally need.
Why does pnitrophenol react with NaOH and not HCl?
NaOH is a strong base so it abstracts the proton from p-nitrophenol resulting in the formation of p-nitrophenoxide ion and water, but HCl is a strong acid so its conjugate base (Chloride ion) if in-case abstracts the proton from p-nitrophenol the resulting p-nitrophenoxide will accept the proton released from acid and again changes into p-nitrophenol, so there will not be any effect. Simply p-nitrophenol is also a weak acid & there will not be any reaction of it with strong hydrochloric acid.
Colour changes of p- nitrophenol in acid and basic media?
In acidic media, p-nitrophenol is colorless. When a base is added, p-nitrophenol changes to a yellow color due to the deprotonation of the phenolic -OH group, forming the anionic form of p-nitrophenol.
What is the reaction of p-anisidine with hydrochloric acid?
The reaction of p-anisidine with hydrochloric acid involves protonation of the nitrogen atom in the aniline ring to form a stable ammonium salt. This results in the formation of a water-soluble salt that can be isolated as a solid precipitate upon addition of a suitable base.
What is p-nitrophenol?
http://en.wikipedia.org/wiki/Dinitrophenol
Is p-nitrophenol an enzyme?
No, p-nitrophenol is not an enzyme. It is a chemical compound that is often used in biochemical research as a substrate for enzyme assays.
How do you convert chloro benzene to p-nitro phenol?
I'd do it this way. Use Dow's Process (NaOH) to convert chlorobenzene to phenol. Now, use nitrating mixture to get both o and p- nitrophenol. Fractional distillation should give you what you finally need.
Why does p-nitrophenol has higher boiling point than o-nitrophenol?
o-nitrophenol forms intramolecular H bond and no association occurs whereas molecules of p-nitrophenol get associated through intermolecular H bonding and boils relatively at higher tem. (above the B.P.of water). Hence,only ortho-nitrophenol is steam volatile.
What is the mechanism of the pnpp to pnp reaction and how does it contribute to the overall process?
The mechanism of the PNPP to PNP reaction involves the conversion of p-nitrophenyl phosphate (PNPP) to p-nitrophenol (PNP) by the enzyme alkaline phosphatase. This reaction contributes to the overall process by releasing a phosphate group and producing a colored product that can be measured to quantify the activity of the enzyme.
Nitration of phenol can be accomplished by using nitric acid at room temp. but the result is a mixture of p-nitrophenol and o-nitrophenol. the isomers can be separated by steam distillation. WHY?
This is because the two isomers have different boiling points and one of which falls under 100 degrees celsius (2-nitrophenol). hence the first to evaporate out is the 2nitrophenol and the rest will be 4nitrophenol. This is because the two isomers have different boiling points and one of which falls under 100 degrees celsius (2-nitrophenol). hence the first to evaporate out is the 2nitrophenol and the rest will be 4nitrophenol.
Pcl5 plus H2O - h3po4 plus hcl?
Phosphorus pentachloride reacts violently with water and can form explosive mixtures with it. Nonetheless...P-Cl5 + 4H2O ----> H3PO4 + 5H-Clis a hydrolysis reaction (the addition of water to a molecule)
Why cant hydrochloric acid be used to distinguish between sodium and potassium?
because beatrice is the hottest person i know :p
What are the ingredients in Ehrlich's indole reagent?
Ehrlich's reagent, used to detect the presence of indole compounds, typically consists of p-dimethylaminobenzaldehyde dissolved in a strong acid, such as hydrochloric acid or sulfuric acid.
