Uploaded by chen.leon13

Chem ch13

advertisement
●
●
●
●
●
●
●
Suspension - a heterogeneous mixture containing particles large enough to be
seen by the naked eye; particles will settle out on standing
Solution - homogeneous mixture, particles are too small to be visible; even
distributed in solvent
Colloid - dispersion of particles in dispersing medium; particles are too small to
settle out, large enough to scatter light
Solute - component present in smallest amt; dissolves in solvent
Solvent - component present in largest amt
Solubility - max amt of a solute that can dissolve in a fixed quantity of a solvent
at any given temp; quantitative term, dilute and concentrated are qualitative
Miscible - substances are soluble in each other at any quantity
Solution forms when the attractive ​forces​ between the solute and solvent are ​similar​ in
strength to the solvent-solvent and solute-solute attractions and therefore are able to
replace them.
Substances that have similar ​intermolecular​ forces are able to dissolve in each toher,
giving rise to the phrase “like ​dissolves​ like.”
13.1
Solute dissolves in solvent -> solution. Solvent is most abundant, but sometimes
substances are miscible, meaning theyre soluble in each other in any proportion.
Ion-dipole forces (attractions between ions and polar molecules) principal force involved
when
Download