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because the non-luminous flame has a higher temperature and the natural spectra of the metal is noticed.
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∙ 10y ago
Wiki User
∙ 12y agoBecause this flame is almost colorless, it will be easy to distinguish between other colors.
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∙ 6y agoBecause the luminous flame would interfere with the observations.
Wiki User
∙ 11y agobecause of the gravity of the earth.
Wiki User
∙ 7y agoTo observe the color of the flame test.
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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.
Should a luminous or non luminous Bunsen flame be used for heating in the laboratory and why?
Non-luminous flame should be used for heating in the laboratory because the flame is steady and produce little or no soot.Non-luminous flame is very hot thus, it is recommendable to use for laboratory purposes.Luminous flame is unsteady while non-luminous flame is steady.Another reason of using non-luminous flame because the flame of non-luminous is blue, and not visible unlike the luminous flame which is yellow in colour and visible.
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.
Why copper sulphate not used in flame test?
A.o.A it is the demand of flame test that salt should be easily vapourised as metalic chloride for this purpose we wet the given salt with acid (HCl) so that it change into chloride but copper cannot remove hydrogen(As Au,Ag,Pt) from acid so cannot changed into chloride and not used in flame test. but if there is chloride salt of copper it can be easily used for flame test with-out use of acid.....
Why the dominant color of a nonluminous flame on a Bunsen burner blue?
The dominant color of a nonluminous flame on a Bunsen burner is blue. Whereas, the dominant color of a luminous flame on a Bunsen burner is orange.
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 is the use of flame test?
to identify atoms present on an element
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.
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
What happens if you use a luminous flame to boil water in a test tube?
Carbon is settled on the test tube.
What are 3 teast that you can use to indentify a mineral?
flame test, titrations, google it.
Should a luminous or non luminous Bunsen flame be used for heating in the laboratory and why?
Non-luminous flame should be used for heating in the laboratory because the flame is steady and produce little or no soot.Non-luminous flame is very hot thus, it is recommendable to use for laboratory purposes.Luminous flame is unsteady while non-luminous flame is steady.Another reason of using non-luminous flame because the flame of non-luminous is blue, and not visible unlike the luminous flame which is yellow in colour and visible.
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.
Why copper sulphate not used in flame test?
A.o.A it is the demand of flame test that salt should be easily vapourised as metalic chloride for this purpose we wet the given salt with acid (HCl) so that it change into chloride but copper cannot remove hydrogen(As Au,Ag,Pt) from acid so cannot changed into chloride and not used in flame test. but if there is chloride salt of copper it can be easily used for flame test with-out use of acid.....
