Neutralisation (OCR A-Level Chemistry A): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
pH meter measurement precision (decimal places)
pH meter measurement precision (decimal places)
2 decimal places
Shape of pH vs volume titration curve
Shape of pH vs volume titration curve
S-shaped curve
pH change in vertical section (pH units)
pH change in vertical section (pH units)
8-10 pH units
Definition of equivalence point
Definition of equivalence point
Point where stoichiometric amounts have reacted completely
pH at equivalence point for strong acid-strong base
pH at equivalence point for strong acid-strong base
pH 7 (neutral)
Definition of end point
Definition of end point
When indicator has equal and
pH range over which indicators change colour
pH range over which indicators change colour
Approximately 2 pH units
Relationship between and pH at indicator end point
Relationship between and pH at indicator end point
Indicators suitable for strong acid-strong base titration
Indicators suitable for strong acid-strong base titration
Both methyl orange and phenolphthalein
Indicator suitability for weak acid-weak base titration
Indicator suitability for weak acid-weak base titration
No indicator suitable; use pH meter