Purity, Formulations & Chromatography (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
14 cards from this deck
ShowHide
Practise the cards
14 cards from this deck
Pure substance definition in chemistry
Pure substance definition in chemistry
Contains only one type of compound or element
What chemically pure water contains
What chemically pure water contains
Only molecules, nothing else
Two methods for testing purity
Two methods for testing purity
Melting point & boiling point analysis
What melting point analysis tests
What melting point analysis tests
Purity of a solid
Equipment for melting point analysis
Equipment for melting point analysis
Capillary tube
Pure solid melting behavior
Pure solid melting behavior
Melts exactly at its melting point
Impure solid melting temperature vs pure
Impure solid melting temperature vs pure
Lower temperature
Impure solid melting pattern
Impure solid melting pattern
Melts over a range, not at a single point
What boiling point analysis tests
What boiling point analysis tests
Purity of a liquid
Pure liquid boiling behavior
Pure liquid boiling behavior
Boils exactly at its boiling point
Impure liquid boiling temperature vs pure
Impure liquid boiling temperature vs pure
Higher temperature
Impure liquid boiling pattern
Impure liquid boiling pattern
Boils over a range of temperatures
Formulation definition
Formulation definition
Purposeful mixture with measured ingredients
Example of a formulation
Example of a formulation
Pain relief tablet