The pH Sensor (Leaving Cert Chemistry): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
pH sensor definition
pH sensor definition
Precise electronic device measuring acidity/alkalinity
Other names for pH sensor
Other names for pH sensor
pH probe, pH electrode
pH sensor measures
pH sensor measures
Hydrogen ion concentration
pH sensor detects
pH sensor detects
Electrical signals
pH sensor advantage: precision
pH sensor advantage: precision
Exact numerical values (e.g., 4.72 vs 'acidic')
pH sensor advantage: objectivity
pH sensor advantage: objectivity
No subjective colour interpretation needed
Why pH sensor calibration needed
Why pH sensor calibration needed
Sensors drift over time; ensures accuracy
Buffer solutions definition
Buffer solutions definition
Solutions that maintain constant pH
Common buffer solutions for calibration
Common buffer solutions for calibration
pH 3 and pH 10 solutions
pH sensor storage requirement
pH sensor storage requirement
Must remain moist in storage solution
Effect of pH sensor drying out
Effect of pH sensor drying out
Will not function properly; needs reconditioning
When pH sensors particularly valuable
When pH sensors particularly valuable
Experiments requiring high precision