What is an advantage of using an instrumental method rather than a chemical test to analyse a substance?Requires special trainingMore expensiveMore accurateRequires comparison with known data2What is flame emission spectroscopy used to analyse?GasesNon-metal ionsMetal ionsMetal and non-metal ions3In flame emission spectroscopy, each metal ion absorbs and gives out its own characteristic pattern of radiation. What is this called?Line spectrumColour spectrumChromatogramRadiation pattern4Which of the following is a use for flame emission spectroscopy?To discover new elementsAll of theseTo control the amounts of trace metals in alloys such as steelTo detect toxic metal ions in drinking water

1. What was the purpose of testing the known compounds?1 pointThe purpose of testing the known compounds was to observe the substance's atomic emission spectrum.The purpose of testing the known compounds was to determine the characteristic flame color of each of the substancesThe purpose of testing the known compounds was to predict the identity of the unknown compoundsThe purpose of testing the known compounds was to determine exactly how much of each element the substance contained

For atomic emission spectroscopy and atomic absorption spectroscopy, which one is more sensitiveto flame instability and why

What information does a flame test provide?A.The quantum numbers of electronsB.The emission spectrum of an elementC.The temperature that causes emissionsD.The absorption spectrum of an element

Describe the fundamental principles of atomic absorption spectrometry. Howdoes it differ from atomic emission spectrometry? Why is temperature control so importantin the latter?

Withinthe TEST platform, spectroscopic based analyses (aside from NMR) are considereduseful as:1 pointThey are quick andnon-destructive Can identify and quantify alarge proportion of all chemical species within a sampleData can be directlyoverlaid on to species specific biochemical mapsThey generate richmulti-dimensional data