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 | |
|---|---|
| show SMILES | |
| Properties | |
| Chemical formula | C6H5NO3 |
| Molar mass | 139.110 g·mol−1 |