Lesson Flashcards: Determining Purity Chemistry

Purity

A measure of the extent to which a substance is free from impurities

Impure substance

A combination or mixture of two or more different substances not chemically bonded together

Boiling point

The temperature at which a liquid is converted to a gas

Purification

The process of removing impurities from a sample

Percentage purity

The amount of desired compound in a sample per the total amount of the sample

Pure substance

A substance that contains only one type of element or compound

Melting point

The temperature at which a solid is converted to a liquid

Impurity

An undesired substance that is mixed in with a desired substance

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