Unformatted text preview: a colloidal dispersion, the beam is visible. Electrolytic Solutions: solutions of ionic salts in water – have the ability to conduct electricity Ionic salts break apart into mobile ions: NaCl (s) + H 2 O (l) Na + (aq) + Cl-(aq) Can an aqueous solution of sugar conduct electricity? No! Molecular solids do not produce ions when in solution. If there are no ions, the solution will not be conductive. Conclusions Other homogeneous mixtures exists: Suspensions – large particles that will settle out Colloidal Dispersions – particles larger than a solution, smaller than a suspension Use the Tyndall effect to differentiate between solutions and colloidal dispersions Electrolytic solutions: Are formed when an ionic salt dissolves in water Have the ability to conduct electricity...
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- Spring '11
- Colloid, colloidal dispersions, homogeneous mixtures