Instrumental Quantitative Techniques (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Below what concentration can instrumental techniques detect substances?
Below what concentration can instrumental techniques detect substances?
1 ppm
In AAS, what must the lamp be made from?
In AAS, what must the lamp be made from?
The same element being tested
Which of these is NOT listed as a heavy metal of concern?
Which of these is NOT listed as a heavy metal of concern?
Copper
What health problems can aluminium accumulation cause?
What health problems can aluminium accumulation cause?
Osteoporosis and headaches
Why is the sample vaporised in AAS?
Why is the sample vaporised in AAS?
To convert it to individual gaseous atoms
What colour filter should be used for a blue solution in colourimetry?
What colour filter should be used for a blue solution in colourimetry?
Yellow
What is plotted on the y-axis of a calibration curve?
What is plotted on the y-axis of a calibration curve?
Absorbance
What is the process of reading concentration values from a calibration graph called?
What is the process of reading concentration values from a calibration graph called?
Interpolation
Which field does NOT use colourimetry according to the material?
Which field does NOT use colourimetry according to the material?
Nuclear physics
Why should a calibration curve pass through the origin ?
Why should a calibration curve pass through the origin ?
Zero concentration means zero absorbance