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Properties of Triplet oxygen

Properties of O2 (Oxygen):

Compound NameOxygen
Chemical FormulaO2
Molar Mass31.9988 g/mol

Chemical structure
O2 (Oxygen) - Chemical structure
Lewis structure
3D molecular structure
Physical properties
AppearanceColorless gas
Thermochemistry
Enthalpy of Formation0.00 kJ/mol
Standard Entropy205.15 J/(mol·K)

Alternative Names

Dioxidanediyl
dioxygen(2•)(triplet)
Oxygen

Elemental composition of O2
ElementSymbolAtomic weightAtomsMass percent
OxygenO15.99942100.0000
Mass Percent CompositionAtomic Percent Composition
O: 100.00%
O Oxygen (100.00%)
O: 100.00%
O Oxygen (100.00%)
Mass Percent Composition
O: 100.00%
O Oxygen (100.00%)
Atomic Percent Composition
O: 100.00%
O Oxygen (100.00%)
Identifiers
CAS Number7782-44-7
SMILES[O]#[O]
SMILES[O][O]
Hill formulaO2

Related compounds
FormulaCompound name
O3Ozone

Sample reactions for O2
EquationReaction type
C3H8 + O2 = CO2 + H2Ocombustion
C2H6 + O2 = CO2 + H2Ocombustion
CH4 + O2 = CO2 + H2Ocombustion
H2 + O2 = H2Osynthesis
C8H18 + O2 = CO2 + H2Ocombustion

Related
Molecular weight calculator
Oxidation state calculator

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