0
By pacing an unknown chemical in a Bunsen flame for example you can determine the elements in that sample by looking at the flame colour through a diffraction grating. This is called Spectroscopy .
A diffraction grating is a piece of clear glass with a huge number of vertically scratched lines like a window grille. The scratches break up the light into the spectrum (or rainbow) and form a sort of bar code of light on a screen which ,like fingerprints, are unique to all the elements.
Example table salt gives off a yellow light and is a characteristic of Sodium metal.
Spectroscopes attached to optical telescopes are used to determine the elements in the Sun (hydrogen,helium etc) and other stars by analysing the starlight.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
The theory that suggests that distinctions between needs related to the work itself from those related to the context of the work is?
Herzberg's motivator-hygiene theory
How could you use a piece of iron wire to find the hottest part of a Bunsen burner?
by having 4 iron wires and placing each one of them in different parts of the flame observe the wire then record results not what wire is placed at what part of the bunsen then see which one is the most red (the more red the more hot the area of the flame you have out it on for it to be a fair test you should have the bunsen on a yellow/orange flame and hover the wire with tongs at the different areas do not change to a blue flame for a different wire,this was out of common sense but i dont know if my theory is correct
How are law and theory related?
A scientific theory is an idea that is supported by a hypothesis. Once the theory is proven to be permanently correct, it is a law or fact.
What did William Crookes use to test John Dalton's theory?
A tube!
If a theory does not agree with the experiments which were designed to test it what two choices to you have?
You either discard your theory, or you can modify it so that it matches the data you have collected.
What is a Mock Theory Test related to driving a car or laboratory experiments on animals?
A Mock Theory Test is related to the driving of a car. This test is used as a practice test and gives real life scenarios for test takers to answer, based on the knowledge they have gained from a driver's training course.
Is a flame test a qualitative or quantitative test?
The flame test in analytical chemistry is only qualitative.
What do you do if you lose your driving theory test certificate?
FOR United KingdomThe DSA oversees the driving theory test. Contact details found in Related links below.
How can you test strontium nitrate ammonium carbonate and potassium sulfate?
A flame test.
What color does Na-Cl burn in a flame test?
NaCl burns yellow in a flame test.
What is the flame test for aluminum?
Aluminium ions like Magnesium ions have no colour in a flame test
How do you know if something is copper for example a vase?
you need to do the flame test you need to do the flame test
How do you test for potassium ions?
Flame test
Does Copper Chloride produce a blue-green or Red flame?
In a flame test the copper ions in copper chloride will produce a 'blue/green' flame. To test for metal ions, the flame colour in a flame test is indicative of the metal present. Lithium = Red Sodium = Yellow Potassium = Lilac (pale purple). There are many more flame test colours.
Examples of constant variables in flame test?
The temperature of the flame.
What was the flame test original use?
The flame test is used for the qualitative determination of some ions in solution.
What is the result with iron II chloride in the test flame?
Iron has a yellow-gold color in the flame test.
