Instrumental Methods (AQA GCSE Chemistry): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
What are instrumental methods
What are instrumental methods
Advanced machines to perform experiments & analyse substances
3 advantages of instrumental methods
3 advantages of instrumental methods
Precision, accuracy, and efficiency
What does flame emission spectroscopy use to identify atoms/ions
What does flame emission spectroscopy use to identify atoms/ions
Visible light
What chemical instruments are
What chemical instruments are
Specialised machines for detailed analysis of chemical samples
What spectroscopy analyses
What spectroscopy analyses
Radiation (light) a sample emits or absorbs
What IR spectroscopy provides info about
What IR spectroscopy provides info about
Molecular structure and composition of a sample
What gravimetry measures to analyse composition
What gravimetry measures to analyse composition
Sample's mass
How instrument data is processed
How instrument data is processed
By computer, producing tables or graphs
Smallest mass change instruments can detect
Smallest mass change instruments can detect
Micrograms
Shortest time interval instruments can detect
Shortest time interval instruments can detect
Microseconds
How many data points a spectrometer collects in seconds
How many data points a spectrometer collects in seconds
Thousands
Labour benefit of using machines
Labour benefit of using machines
One machine can do work of many scientists