Mass spectrometry (AQA A-Level 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 mass spectrometry primarily used to determine?
What is mass spectrometry primarily used to determine?
Molecular mass and formula
What happens to a sample when it passes through a mass spectrometer?
What happens to a sample when it passes through a mass spectrometer?
It is ionised and fragmented
During ionisation, what bombardment causes the sample to form positive ions?
During ionisation, what bombardment causes the sample to form positive ions?
High-energy electrons
What deflects ions based on their ratio in a mass spectrometer?
What deflects ions based on their ratio in a mass spectrometer?
A magnetic field
Where does the molecular ion peak () appear in a mass spectrum?
Where does the molecular ion peak () appear in a mass spectrum?
At the highest value
If the molecular ion peak appears at = 58, what is the of the compound?
If the molecular ion peak appears at = 58, what is the of the compound?
58
What do the fragmentation peaks in a mass spectrum represent?
What do the fragmentation peaks in a mass spectrum represent?
Parts of the molecule
To how many decimal places can high-resolution mass spectrometry measure masses?
To how many decimal places can high-resolution mass spectrometry measure masses?
Four decimal places
What is the precise value for propane () using HRMS?
What is the precise value for propane () using HRMS?
44.0624
A fragment peak at = 29 may indicate the presence of which group?
A fragment peak at = 29 may indicate the presence of which group?
Ethyl group ()