Chem 3al lecture for lab 2 - Terminology of Mixing...

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Unformatted text preview: Terminology of Mixing Solution: A homogenous mixture of two or more compounds. Solute: The compound in a solution present in lesser amount. Solvent: The major component of a solution. Miscibility: Two components of a solution are inFnitely soluble in each other. Saturation: The maximum amount of solute dissolved at a given temperature. The Thermodynamics of Mixing G mixture = H mixture- T S mixture Enthalpy of Mixing (of two compounds A and B) H mixture of A and B = H separation of A from A + H separation of B from B + H association of A and B (mix A:B) (sep A:A) (sep B:B) (assoc A:B) H mixture > 0 when H separation > H association positive negative H mixture = 0 when H separation = H association H mixture < 0 when H separation < H association not very common When will H mixture ~ 0 ? When H separation ~ H association pentane octane O O tetrahydrofuran tetrahydropyran OH 1-hexanol OH 1-heptanol G m ix t u r e = H m ix t u r e- T S m ix t u r e When will...
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Chem 3al lecture for lab 2 - Terminology of Mixing...

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