Solutions And Formation Of Crystals

A substance that dissolves other materials to form a solution

A mixture in which small solid or liquid particles are suspended in a liquid or gas Eg muddy water (doesn’t dissolve)

One in which there is a small amount of solute in a large amount of solvent

One in which there is a large amount of solute in a small amount of solvent

A solid with a regular shape, where the particles are arranged in a regular pattern

One that contains as much dissolved solute as possible at a given temperature

• add powder copper sulfate to water in a beaker until it no longer dissolved and sits at bottom, stir with spatula • heat to 60C , add more, heat more until it’s saturated • place half into a warm evaporating basin and let cool slowly : large crystals • other half hold beaker under cold water : small crystals

The formation of crystals When a hot saturated solution cools

The mass of the substance in grams that will dissolve in 100 g solvent at a fixed temperature

A graph showing how the solubility if a substance varies with temperature

Solid copper sulfate doesnt conduct bc charged particles are locked in fixed position When dissolved in water, the charged particles are free to move and can conduct COPPER SULFATE SOLUTION DISPLAYS ELECTRICAL CONDUCTIVITY sugar solution doesn’t