Required Practical: Analysis & Purification of Water Samples (AQA GCSE Chemistry): Flashcards
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Practise the cards
15 cards from this deck
Potable water definition
Potable water definition
Safe to drink
pH of pure water
pH of pure water
(neutral)
Equipment to measure pH
Equipment to measure pH
pH probe or universal indicator paper
Pure water residue after evaporation
Pure water residue after evaporation
No solid residue
Purpose of distillation
Purpose of distillation
Separate pure water from dissolved solids & impurities
4 parts of distillation apparatus
4 parts of distillation apparatus
Conical flask, delivery tube, condenser, receiving beaker
Dissolved solids during distillation
Dissolved solids during distillation
Left behind when water evaporates
Function of condenser
Function of condenser
Cools water vapour and condenses it back to liquid
pH of distilled water
pH of distilled water
Close to
Residue after evaporating distilled water
Residue after evaporating distilled water
No solid residue
Precaution for hot apparatus
Precaution for hot apparatus
Allow time to cool before touching
Method to test for dissolved solids
Method to test for dissolved solids
Evaporate water sample in basin, check for residue
Product collected in distillation
Product collected in distillation
Pure water (condensed vapour)
Purpose of pH testing water
Purpose of pH testing water
Check acidity or alkalinity
Purpose of dissolved solids test
Purpose of dissolved solids test
Check for dissolved salts or minerals