Input interpretation
![acetic acid](../image_source/66ad75f4304002eab884e08034819ded.png)
acetic acid
Chemical names and formulas
![formula | CH_3CO_2H Hill formula | C_2H_4O_2 name | acetic acid alternate names | acetic acid, glacial | ethanoic acid | ethylic acid | glacial acetic acid | methanecarboxylic acid | vinegar acid mass fractions | C (carbon) 40% | H (hydrogen) 6.71% | O (oxygen) 53.3%](../image_source/8ce4d8bf1b295a4ce3e3f00a4e52bf45.png)
formula | CH_3CO_2H Hill formula | C_2H_4O_2 name | acetic acid alternate names | acetic acid, glacial | ethanoic acid | ethylic acid | glacial acetic acid | methanecarboxylic acid | vinegar acid mass fractions | C (carbon) 40% | H (hydrogen) 6.71% | O (oxygen) 53.3%
Lewis structure
![Draw the Lewis structure of acetic acid. Start by drawing the overall structure of the molecule, ignoring potential double and triple bonds: Count the total valence electrons of the carbon (n_C, val = 4), hydrogen (n_H, val = 1), and oxygen (n_O, val = 6) atoms: 2 n_C, val + 4 n_H, val + 2 n_O, val = 24 Calculate the number of electrons needed to completely fill the valence shells for carbon (n_C, full = 8), hydrogen (n_H, full = 2), and oxygen (n_O, full = 8): 2 n_C, full + 4 n_H, full + 2 n_O, full = 40 Subtracting these two numbers shows that 40 - 24 = 16 bonding electrons are needed. Each bond has two electrons, so in addition to the 7 bonds already present in the diagram add 1 bond. To minimize formal charge oxygen wants 2 bonds and carbon wants 4 bonds. Identify the atoms that want additional bonds and the number of electrons remaining on each atom: Fill in the 1 bond by pairing electrons between adjacent highlighted atoms: Answer: | |](../image_source/c55a60ab9d3f78ac28db6cf396f7ed01.png)
Draw the Lewis structure of acetic acid. Start by drawing the overall structure of the molecule, ignoring potential double and triple bonds: Count the total valence electrons of the carbon (n_C, val = 4), hydrogen (n_H, val = 1), and oxygen (n_O, val = 6) atoms: 2 n_C, val + 4 n_H, val + 2 n_O, val = 24 Calculate the number of electrons needed to completely fill the valence shells for carbon (n_C, full = 8), hydrogen (n_H, full = 2), and oxygen (n_O, full = 8): 2 n_C, full + 4 n_H, full + 2 n_O, full = 40 Subtracting these two numbers shows that 40 - 24 = 16 bonding electrons are needed. Each bond has two electrons, so in addition to the 7 bonds already present in the diagram add 1 bond. To minimize formal charge oxygen wants 2 bonds and carbon wants 4 bonds. Identify the atoms that want additional bonds and the number of electrons remaining on each atom: Fill in the 1 bond by pairing electrons between adjacent highlighted atoms: Answer: | |
3D structure
![3D structure](../image_source/fb273372dbbf5afa8ffbf54314b5b10c.png)
3D structure
Basic properties
![molar mass | 60.052 g/mol phase | liquid (at STP) melting point | 16.2 °C boiling point | 117.5 °C density | 1.049 g/cm^3 solubility in water | miscible dielectric constant | 6.17](../image_source/b39e51121d73ddd1e292dba6f4ebb762.png)
molar mass | 60.052 g/mol phase | liquid (at STP) melting point | 16.2 °C boiling point | 117.5 °C density | 1.049 g/cm^3 solubility in water | miscible dielectric constant | 6.17
Hydrophobicity and permeability properties
![predicted LogP hydrophobicity | -0.12 experimental LogS | 1.22 predicted LogS | 0.73](../image_source/00e4a1eccde0c1febc4dabeaf0a6472b.png)
predicted LogP hydrophobicity | -0.12 experimental LogS | 1.22 predicted LogS | 0.73
Basic drug properties
![approval status | experimental | small molecule drug categories | indicators and reagent](../image_source/7b009d9994789aff0e5ca33730a3ea35.png)
approval status | experimental | small molecule drug categories | indicators and reagent
Liquid properties (at STP)
![density | 1.049 g/cm^3 vapor pressure | 11.4 mmHg dynamic viscosity | 0.001056 Pa s (at 25 °C) surface tension | 0.0288 N/m refractive index | 1.371 UV cutoff wavelength | 260 nm](../image_source/f19c3b328c0e9f6662c42616138646f6.png)
density | 1.049 g/cm^3 vapor pressure | 11.4 mmHg dynamic viscosity | 0.001056 Pa s (at 25 °C) surface tension | 0.0288 N/m refractive index | 1.371 UV cutoff wavelength | 260 nm
Units
Thermodynamic properties
![specific heat capacity c_p | gas | 1.056 J/(g K) | liquid | 2.053 J/(g K) molar heat capacity c_p | gas | 63.4 J/(mol K) | liquid | 123.3 J/(mol K) specific free energy of formation Δ_fG° | liquid | -6.493 kJ/g molar free energy of formation Δ_fG° | liquid | -389.9 kJ/mol specific heat of formation Δ_fH° | gas | -7.197 kJ/g molar heat of formation Δ_fH° | gas | -432.2 kJ/mol specific entropy S° | liquid | 2.664 J/(g K) molar entropy S° | liquid | 160 J/(mol K) molar heat of vaporization | 52.3 kJ/mol | specific heat of vaporization | 0.871 kJ/g | molar heat of combustion | 873 kJ/mol | specific heat of combustion | 14.5 kJ/g | molar heat of fusion | 11.73 kJ/mol | specific heat of fusion | 0.1953 kJ/g | critical temperature | 594.7 K | critical pressure | 5.791 MPa | (at STP)](../image_source/84748289bb9d7a2c2f050738e7b4d997.png)
specific heat capacity c_p | gas | 1.056 J/(g K) | liquid | 2.053 J/(g K) molar heat capacity c_p | gas | 63.4 J/(mol K) | liquid | 123.3 J/(mol K) specific free energy of formation Δ_fG° | liquid | -6.493 kJ/g molar free energy of formation Δ_fG° | liquid | -389.9 kJ/mol specific heat of formation Δ_fH° | gas | -7.197 kJ/g molar heat of formation Δ_fH° | gas | -432.2 kJ/mol specific entropy S° | liquid | 2.664 J/(g K) molar entropy S° | liquid | 160 J/(mol K) molar heat of vaporization | 52.3 kJ/mol | specific heat of vaporization | 0.871 kJ/g | molar heat of combustion | 873 kJ/mol | specific heat of combustion | 14.5 kJ/g | molar heat of fusion | 11.73 kJ/mol | specific heat of fusion | 0.1953 kJ/g | critical temperature | 594.7 K | critical pressure | 5.791 MPa | (at STP)
Chemical identifiers
![CAS number | 64-19-7 Beilstein number | 506007 PubChem CID number | 176 PubChem SID number | 3335 SMILES identifier | CC(=O)O InChI identifier | InChI=1/C2H4O2/c1-2(3)4/h1H3, (H, 3, 4)/f/h3H InChI key | QTBSBXVTEAMEQO-TULZNQERCK RTECS number | AF1225000 MDL number | MFCD00036152](../image_source/fe8783523932bb5fd2d78575a6165327.png)
CAS number | 64-19-7 Beilstein number | 506007 PubChem CID number | 176 PubChem SID number | 3335 SMILES identifier | CC(=O)O InChI identifier | InChI=1/C2H4O2/c1-2(3)4/h1H3, (H, 3, 4)/f/h3H InChI key | QTBSBXVTEAMEQO-TULZNQERCK RTECS number | AF1225000 MDL number | MFCD00036152