Flame photometry (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the main purpose of a flame photometer?
What is the main purpose of a flame photometer?
To identify & measure metal ion conc.
What quantity of metal ions can flame photometry analyse accurately?
What quantity of metal ions can flame photometry analyse accurately?
Small quantities
What happens to the sample solution when sprayed into the flame?
What happens to the sample solution when sprayed into the flame?
It is evaporated at high temperatures
What does the sample emit as it burns in the flame?
What does the sample emit as it burns in the flame?
Light with specific wavelengths
What does the detector in a flame photometer measure?
What does the detector in a flame photometer measure?
Light intensity from metal ions
Why can different metal ions be identified in flame photometry?
Why can different metal ions be identified in flame photometry?
They produce unique spectra
What is used to determine the concentration of a metal ion?
What is used to determine the concentration of a metal ion?
A calibration curve
How is a calibration curve created in flame photometry?
How is a calibration curve created in flame photometry?
Using standards with known conc.
What allows specific metal ions to be identified?
What allows specific metal ions to be identified?
Unique line spectrum for each ion
How does flame photometry compare to simple flame tests in sensitivity?
How does flame photometry compare to simple flame tests in sensitivity?
More sensitive
How many metal ions can flame photometry detect in mixtures?
How many metal ions can flame photometry detect in mixtures?
Multiple metal ions
What advantage does flame photometry have regarding human error?
What advantage does flame photometry have regarding human error?
Reduces chance of human error