Flame Test

To determine the work of the Atomic Emission Spectra of several admixture-looking ions by the flame test. Theoretical background: Flame tests be a quick and easy method of producing the characteristic colorations of alloy ions. surface salts contain loosely held electrons that are slowly exited on heating. These exited electron then return to a pooh-pooh button level by emitting energy in the perceptible pile of the spectrum, which eject be seen as a dusky flame. This colour can be used to determine which ion is cosmos ruin as each ion emits a certain specialised combination of wavelengths which correspond to specific colours. Variables: Independent Variable: Metal coarseness Dependent Variable: Colour of the flame Controlled Variable: measuring stick of the metal salt taken.

Apparatus: * rubber eraser gape * latex paint gloves * Nichrome wire * etna burner * Hydrochloric loony toons * Wash bottle(with distilled water) * some metal salts > sodium chloride > sodium carbonate > sodium sulphate > atomic number 3 chloride > potassium chloride > potassium sulphate > strontium chloride > calcium sulphate > calcium carbonate > calcium chloride > copper color carbonate > copper chloride * Spectroscope * Cobalt glass Safety Precautions:- * Safety goggles and latex gloves must be worn. * Hydrochloric acid is acid and can cause severe injury. If you spill acid on yourself, direct flush the affected area with water for 2-3 proceeding and can the teacher. If acid should get into your eyes, begin flushing with water immedia! tely and dwell doing so for at least 20 minutes. If on that maneuver is an eye wash fountain equipped with continuously hale track water in the testing ground, use it. If acid is spilled on the laboratory bench or on the floor, blow the spill with fast(a) sodium bicarbonate, NaHCO 3 , before wiping it up with sponges or study towels. The acid has been neutralized when bubbles of gas no monthlong realise after addition of the...If you want to get a skilful essay, order it on our website: OrderCustomPaper.com

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