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What is the pKa of phenol?

What is the pKa of phenol?

The pKa value for phenol is 10.0, and two series of substituted phenols are given: 2-fluorophenol, 3-fluorophenol, and 4-fluorophenol have pKa values of 8.7, 9.3, and 9.9, respectively; 2-nitrophenol, 3-nitrophenol, and 4-nitrophenol have pKa values of 7.2, 8.4, and 7.2, respectively.

What is the pKa of carbamate?

The ionization of the proton positioned on the carbamate functionality was confirmed spectrophotometrically (pKa = 10.1). The spectrophotometric result was in excellent agreement with that obtained from the solubility studies (pKa = 10.2).

What is the pKa of COH?

Ionization Constants of Heteroatom Organic Acids

Common Name Formula pKa
1°-amides RCONH2 17
p-nitroaniline O2NC6H4NH2 18.5
t-butanol (CH3)3COH 19
aniline C6H5NH2 27

What is the pKa of 4 Nitrophenol?

3D Structure for HMDB0001232 (4-Nitrophenol)

Property Value Source
pKa (Strongest Acidic) 7.07 ChemAxon
pKa (Strongest Basic) -7.1 ChemAxon
Physiological Charge 0 ChemAxon
Hydrogen Acceptor Count 3 ChemAxon

What is the full form of C6H5OH?

Phenol | C6H5OH – PubChem.

What is the pKa of h2so4?

Sulfuric acid (H2SO4): pKa1 ≈ -3 (first dissociation only) p-Toluenesulfonic acid: pKa = -2.8.

What does a pKa of 5 mean?

The pKa measures how tightly a proton is held by a Bronsted acid. A pKa may be a small, negative number, such as -3 or -5. It may be a larger, positive number, such as 30 or 50. The lower the pKa of a Bronsted acid, the more easily it gives up its proton.

What is the pKa of CH3NH2?

Problem: The pKa of CH3NH2 is 40, while the pKa of HCN is 9.

What is the structure of 4 nitro phenol?

4-Nitrophenol (also called p-nitrophenol or 4-hydroxynitrobenzene) is a phenolic compound that has a nitro group at the opposite position of the hydroxyl group on the benzene ring….4-Nitrophenol.

Names
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Properties
Chemical formula C6H5NO3
Molar mass 139.110 g·mol−1

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Ruth Doyle