EOU Energy & Seperating Mixtures

Chromatography

A separation technique to separate a mixture of dissolved substances in a liquid using paper (the stationary phase) and a solvent (the mobile phase).

Concentrated

A solution that has a lot of solute dissolved in the solvent, it has a high proportion of solute compared to the solvent

Decanting

Separating a liquid from another substance by carefully pouring it into a separate container.

Dilute

A solution that does not have a lot of solute dissolved in the solvent, it has a low proportion of solute compared to the solvent

Dissolve

A word to describe how substances mix to form a solution.

Distillation

A separation technique that uses different boiling points to separate mixtures.

Filtrate

The liquid that is separated from a suspension during filtration.

Filtration

A separation technique for separating a suspension that uses filter paper to remove the solid from the liquid.

Insoluble

Unable to dissolve.

Mixture

An impure substance that has two or more components that are not in a fixed ratio and are not chemically bonded together.

Physical Property

A property of the substance that describes it (e.g. colour, boiling point, state of matter) and is not related to how it reacts in a chemical reaction.

Pure

Only contains one type of substance.

Residue

The solid that is removed from a suspension during filtration and is collected in the filter paper.

Saturated

A type of solution where no more solute is able to dissolve in the solvent.

Soluble

Able to dissolve (usually in water).

Solute

A solid that is dissolved in a solvent.

Solution

A type of mixture that has a solid dissolved in a solvent.

Solvent

A liquid that dissolves something, a liquid that dissolves a solid.

Suspension

A type of mixture that has a solid in a liquid, but the solid does not dissolve and the particle size is large enough that the particles settle out over time.