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Alkanes have the general chemical formula C n H 2n+2. The alkanes range in complexity from the simplest case of methane ( CH 4 ), where n = 1 (sometimes called the parent molecule), to arbitrarily large and complex molecules, like pentacontane ( C 50 H 102 ) or 6-ethyl-2-methyl-5-(1-methylethyl) octane, an isomer of tetradecane ( C 14 H 30 ).
The principle of homology allows us to write a general formula for alkanes: C n H 2 n + 2. Using this formula, we can write a molecular formula for any alkane with a given number of carbon atoms. For example, an alkane with eight carbon atoms has the molecular formula C 8 H (2 × 8) + 2 = C 8 H 18.
Alkanes are organic compounds that consist of single-bonded carbon and hydrogen atoms. The formula for Alkanes is CnH2n+2, subdivided into three groups – chain alkanes, cycloalkanes, and the branched alkanes.
23 sty 2023 · Alkanes have the general formula CnH2n+2 C n H 2 n + 2 and can be subdivided into the following three groups: the linear straight-chain alkanes, branched alkanes, and cycloalkanes. Alkanes are also saturated hydrocarbons.
General formula: C n H 2n+2; pH: Neutral; pKa: Above 30; Solubility: Insoluble in water but soluble in nonpolar organic solvents ; C–C bond length: 1.53 Å; C–C bond strength: 356 kJ mol-1; IR Spectroscopy: The C–H bond of an alkane gives a signal at around 2850 – 3000 cm-1; Alkane Isomerism Structural Isomers
23 sty 2023 · The general formula for alkanes is C N H 2N +2; the simplest possible alkane is therefore methane, CH 4. The next simplest is ethane, C 2 H 6 ; the series continues indefinitely. Each carbon atom in an alkane has sp³ hybridization.
Alkanes are saturated hydrocarbon consist of carbon and hydrogen only without any functional group. The general formula of alkane is C n H 2n+2. Example: methane (CH 4), ethane (C 2 H 6), propane (C 3 H 8) etc.
