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Monday, December 24, 2018

'Chemistry Lab Experiment: The Flame Test Essay\r'

' fervor leaven:\r\nAIM: To determine which differentiate of the common salt is responsible for the characteristics in the fl be.\r\n possibility: If we introduce a coat salt in the blue flame of the etna burner, hence the coloring given mutilate by the flame is out-of-pocket to the admixture part of the salt.\r\nMETHOD:\r\n(1)With a take fire proof mat under the bunsen burner, turn the gas on and commence up the etna burner with matches. (2)Pour enough Hydrochloric sulfurous into a beaker. (3)Using your equip, dip it into the beaker containing Hydrochloric acid (4)Place it into the flame for a few seconds; this is the bareing regularity to avoid contamination of other solutions. If the Bunsen burner flame does not change tinct, then your wire is nibble and you can blend in to dip it into a alloy salt.\r\n(5)Dip your wire into a metal salt either the nitrate or chloride and place the wire onto the tip of the blue flame. (6)Observe the change in colour of the Bunsen burners flame and place down the observations as you go. (7)As long as you clean the wire as direct in step 3-4 you can proceed into scrutiny the other metal salts.\r\nQUESTIONS:\r\nQ1: Were there any(prenominal) main loss between the chloride salts and the nitrate salts? If there was please comment on what it was Yes, I had observed some difference between the colour captured from the chloride and nitrate salts founder in one flame test. The strontium flame admitted some(prenominal)(prenominal) a quasi(prenominal) orange colour, but the strontium nitrate has a much more than vivacious dark orange than the strontium chloride.\r\nQ2: argue reasons why the experiment tried and true both nitrate and chloride salts? The experiment tested both nitrate and chloride salts to allow us to examine which part of salt is responsible for the colour change of the flame.\r\nQ3: Suggest why flames on gas stove burn orange-yellow when a small amount of pee boils all over onto them? This is due to the chemicals present in the water; such as sodium chloride, calcium ion. The orange-yellow flame admitted could also be due to the ingredients added to the water such as salt.\r\n raillery:\r\nWhen the metal salt is introduced to the flame, the electrons absorb warmth capability and can jump into a higher energy level. Because the electrons are this instant at a higher and more energetically unstable level, they fall plunk for down to their original shell, by doing so visible light is emitted due to the energy release.\r\nName a possible credit of experiment error and suggest at least one way to bowdlerise the effect: A possible observational error that could have effect the contribute is contamination of metal salts. As directed in the steps you must clean the wire using hydrochloric acid. By doing this you are removing any traces of the previous metal salts that could metamorphose the true colour of the flame produce by a different metal salt. By re using the same wire at each metal salt, you could reduce the effect. severally wire will be altogether free of contamination of other metal salts as it will be open to only one metal salt.\r\n result:\r\nData collected from the flame test identified that both chloride and nitrogen tested were identical, meaning metal is responsible for the colour produced in the flame. This is evidence that strongly supports my possibleness; therefore I accept my guess on that basis.\r\n'

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