Ultraviolet-Visible Spectrophotometry (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
What is the wavelength range of the UV region in UV-vis spectrophotometry?
What is the wavelength range of the UV region in UV-vis spectrophotometry?
190 to 400 nm
What are chromophores?
What are chromophores?
Atoms that absorb UV-visible light
In the Beer-Lambert Law , what does represent?
In the Beer-Lambert Law , what does represent?
Molar absorptivity
What are the units of absorbance in UV-vis spectrophotometry?
What are the units of absorbance in UV-vis spectrophotometry?
No units
What component splits light into wavelengths in a UV-vis spectrophotometer?
What component splits light into wavelengths in a UV-vis spectrophotometer?
Diffraction grating
What is used for?
What is used for?
Identifying substances
According to Beer-Lambert Law, how does absorbance relate to concentration?
According to Beer-Lambert Law, how does absorbance relate to concentration?
Directly proportional
Which industry uses UV-vis spectrophotometry for drug testing and quality control?
Which industry uses UV-vis spectrophotometry for drug testing and quality control?
Pharmaceutical
How do conjugated systems absorb compared to isolated double bonds?
How do conjugated systems absorb compared to isolated double bonds?
At longer wavelengths
What is the first step in determining unknown concentrations using UV-vis?
What is the first step in determining unknown concentrations using UV-vis?
Prepare standard solutions