(Solution) - Acetic acid CH3COOH forms stable pairs of molecules held together -(2025 Original AI-Free Solution)

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Acetic acid, CH3COOH, forms stable pairs of molecules held together by two hydrogen bonds.

Such molecules?themselves formed by the association of two simpler molecules?are called dimers. The vapor over liquid acetic acid consists of a mixture of monomers (single acetic acid molecules) and dimers. At 100.6°C the total pressure of vapor over liquid acetic acid is 436 mmHg. If the vapor consists of 0.630 mole fraction of the dimer, what are the masses of monomer and dimer in 1.000 L of the vapor? What is the density of the vapor?