Volumetric Analysis: Oxidation-Reduction (LC 2027) (Leaving Cert Chemistry): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What is experimental error in chemistry?
What is experimental error in chemistry?
Difference between measured & true value
Which best describes a systematic error?
Which best describes a systematic error?
Consistent, repeating error in same direction
What does a systematic error affect?
What does a systematic error affect?
Accuracy but not precision
Can systematic errors be completely eliminated?
Can systematic errors be completely eliminated?
Yes, through proper procedures
What is parallax error?
What is parallax error?
Reading meniscus from wrong angle
Which is an example of systematic error?
Which is an example of systematic error?
Damaged pipette tip delivering low volume
How can systematic errors be minimised?
How can systematic errors be minimised?
Proper calibration & reading at eye level
Which best describes a random error?
Which best describes a random error?
Unpredictable fluctuation in both directions
What does a random error affect?
What does a random error affect?
Precision but not accuracy
Can random errors be completely eliminated?
Can random errors be completely eliminated?
No, only minimised
Which is an example of random error?
Which is an example of random error?
Temperature fluctuations during experiment
How can random errors be minimised?
How can random errors be minimised?
Taking multiple measurements & averaging
Titrations give 22.4, 22.2, 22.1 (true: 22.5 ). What error type?
Titrations give 22.4, 22.2, 22.1 (true: 22.5 ). What error type?
Systematic - all consistently low