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Arrange the following compounds in order of increasing boiling point.

Question

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Arrange the following compounds in order of increasing boiling point.

Accepted Answer

∻Solution∻ ‖ 1 ⋮ **Identify the compounds**: The three organic compounds given are propanal (CH3CH2COH), acetone (CH3CH2COCH3), and butane (CH3CH2CH2CH3). ‖ ‖ 2 ⋮ **Analyze intermolecular forces**: The boiling point of a compound is largely determined by the strength of its intermolecular forces. Propanal has hydrogen bonding due to the presence of an aldehyde group, acetone has dipole-dipole interactions due to the presence of a ketone group, and butane has only London dispersion forces as it is a nonpolar molecule. ‖ ‖ 3 ⋮ **Rank by boiling point**: Compounds with hydrogen bonding typically have the highest boiling points, followed by those with dipole-dipole interactions, and then those with London dispersion forces. ‖ ‖ 4 ⋮ **Arrange the compounds**: Based on the strength of intermolecular forces, the compounds can be arranged in order of increasing boiling point: butane (lowest boiling point), acetone (intermediate boiling point), and propanal (highest boiling point). ‖ ∻Answer∻ ⚹ CH3CH2CH2CH3 < CH3CH2COCH3 < CH3CH2COH ⚹ ∻Key Concept∻ ⚹ Intermolecular forces determine boiling points ⚹ ∻Explanation∻ ⚹ The strength of intermolecular forces (hydrogen bonding > dipole-dipole > London dispersion) dictates the order of increasing boiling points for the given compounds. ⚹◊What is the relationship between molecular structure and boiling point in organic compounds⍭ Generate me a similar question◊

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