The pH Sensor (Leaving Cert Chemistry): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the primary function of a pH sensor?
What is the primary function of a pH sensor?
Measures hydrogen ion concentration
What is another name for a pH sensor?
What is another name for a pH sensor?
pH probe
How does a pH sensor work?
How does a pH sensor work?
By detecting electrical signals
What advantage do pH sensors have over traditional pH indicators?
What advantage do pH sensors have over traditional pH indicators?
They provide exact numerical values
Why do pH sensors remove subjectivity from pH measurements?
Why do pH sensors remove subjectivity from pH measurements?
They avoid colour interpretation issues
Why must a pH sensor be calibrated before use?
Why must a pH sensor be calibrated before use?
Sensitivity can drift due to wear
What are buffer solutions used for in pH sensor calibration?
What are buffer solutions used for in pH sensor calibration?
They maintain a constant pH value
Which buffer solutions are commonly used for pH sensor calibration?
Which buffer solutions are commonly used for pH sensor calibration?
pH 3 and pH 10
What is the first step in the pH sensor calibration process?
What is the first step in the pH sensor calibration process?
Place sensor in first buffer solution
What indicates a pH sensor is both accurate and precise after calibration?
What indicates a pH sensor is both accurate and precise after calibration?
Repeated readings are very similar
How should the glass electrode of a pH sensor be stored?
How should the glass electrode of a pH sensor be stored?
Always moist in storage solution
When are pH sensors particularly valuable in experiments?
When are pH sensors particularly valuable in experiments?
When high precision is required