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Yes. Every element has a very particular emission spectrum. Each element has a specific structure of nucleus and electron orbits. Because of this, when a certain element is ionized (ie. by a flame), the electrons rejoining with the nuclei give off a specific frequency of light. The color of light witnessed after burning the compound is an indicator of the elements present.
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∙ 13y ago
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∙ 10y agono because the results would be too hard to interpret all the different colors that the flame is releasing. It would be very difficult to dicipher the different colors and matcht them with the corressponding element.
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∙ 12y agowell, a flame test can not be used as it is not accurate. this is because some colours are slightly the same or other elements share a colour when subjected to a flame
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∙ 11y agothe emission spectrum
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∙ 13y agoyes !
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What was the flame test original use?
The flame test is used for the qualitative determination of some ions in solution.
Uses of flame tests in industry?
There are a few different applications of a flame test. These applications include testing for specific chemicals, checking some items specifically for poisonous chemicals, and testing fireworks.
Why is it necessary to use non-luminous flame in flame test?
because the non-luminous flame has a higher temperature and the natural spectra of the metal is noticed.
How can we test hydrogen?
In the lab. and for small quantities. use the 'pop' test. Allow the hydrogen to be in contact with oxygen, then put a flame to it. It will 'pop'.
Why is it important to use a clean nichrome wire for each flame test?
The wire simply holds the sample in the flame. Nichrome wire has such a high melting point that the relatively low temperature of the burning flame won't drive any of the Ni or Cr atoms into the ionic state and interfere with the color of the ions in the compound which is adhering to the wire.
What is the use of flame test?
to identify atoms present on an element
How can a flame test be used to determine the identity of an element?
Some flame colours are characteristic of metals present, eg Lilac for K+, Red for strontium. However, this is only indicative, because there are a few at least that have a red colour, so it needs to be proven further with a chemical test
Why can you not use flame tests to identify all the elements?
1. not all elements give colour to the flame 2. flame test is not always accurate
Why cant flame test be use to identify non metals?
Non metals cannot emit a colored light.
What was the flame test original use?
The flame test is used for the qualitative determination of some ions in solution.
Why do you use a metal-nitrate in a flame test?
it doesnt change the color of the flame.
What difficulties may be encountered in the use of the flame test for identification of metallic ion?
A difficulty that may be found in using the flame test is eye imperfection. Another is subjectivity when it comes to perceiving the colors.
Uses of flame tests in industry?
There are a few different applications of a flame test. These applications include testing for specific chemicals, checking some items specifically for poisonous chemicals, and testing fireworks.
Why can you use density to identify an element?
density and be used to identify an element because of the types of molecules. Use D = M v
Can you do a flame test with NaCl in solid form or sodium chloride as an aqueous solution?
It is recommended to use the sodium chloride solution; the color in the flame test is yellow.
What test do mineralogist use to identify minerals?
streak test, hardness test, scratch test, color test
What happens if you use a luminous flame to boil water in a test tube?
Carbon is settled on the test tube.
