Solubility and Intermolecular Forces

Solutions: Like Dissolves Like Solubility and Intermolecular Forces

Water and Hexane are the solvents. Iodine and potassium permanganate are the solutes. Iodine dissolves in hexane. Potassium permanganate dissolves in water.
Like Dissolves Like: Hexane, Water Iodine KMnO4 Image

Precipitation of Lead(II) Iodide

When lead(II) nitrate and potaasium iodide are mixed in water, students observe the formation of a bright yellow precipitate, lead(II) iodide.
Precipitation of lead(II) iodide

Conductivity of Electrolytes Demonstration

When a current is applied to an aqeous solution, strong electrolyte solutions light up a light bulb, weak electrolyte solutions dimly light a bulb, and nonelectrolyte solutions do not light a bulb.
Comparing stong, weak, and non-electrolyte solutions: Conductivity


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