Organic Synthesis (OCR A-Level Chemistry A): Flashcards
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Practise the cards
10 cards from this deck
Key feature of Quickfit apparatus
Key feature of Quickfit apparatus
Ground-glass joints that create airtight seal
Purpose of heating under reflux
Purpose of heating under reflux
Prevents loss of volatile substances during heating
Function of anti-bumping granules
Function of anti-bumping granules
Provide surfaces for smooth bubble formation during boiling
Water flow direction in condenser
Water flow direction in condenser
Enters at bottom, exits at top
Purpose of distillation
Purpose of distillation
Separates liquids based on different boiling points
Component that distils first in mixture
Component that distils first in mixture
Liquid with lowest boiling point (most volatile)
Condenser position: reflux vs distillation
Condenser position: reflux vs distillation
Reflux: vertical; Distillation: at an angle
Method to identify aqueous layer
Method to identify aqueous layer
Add water; layer that increases in volume is aqueous
What is a drying agent?
What is a drying agent?
Anhydrous salt that absorbs water from organic liquids
Sign that organic liquid is completely dry
Sign that organic liquid is completely dry
Some drying agent remains dispersed as fine powder