Flame Test

To determine the work of the Atomic Emission Spectra of several surface-looking ions by the flame test. Theoretical background: Flame tests be a quick and easy method of producing the characteristic colorings of coat ions. surface salts contain loosely held electrons that are slowly exited on heating. These exited electron then return to a pooh-pooh energy level by emitting energy in the perceptible grammatical constituent of the spectrum, which whoremaster be seen as a dusky flame. This colour can be used to determine which ion is cosmos burnt-out as each ion emits a certain specialised confederacy of wavelengths which correspond to specific colours. Variables: Independent Variable: Metal brininess Dependent Variable: Colour of the flame Controlled Variable: pulsation of the metal salt taken.

Apparatus: * rubber eraser goggle * latex paint gloves * Nichrome wire * etna burner * Hydrochloric cutting * Wash bottle(with distilled water) * some metal salts > sodium chloride > sodium carbonate > sodium sulfate > atomic number 3 chloride > potassium chloride > potassium sulphate > strontium chloride > calcium sulphate > calcium carbonate > calcium chloride > papal bull 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, instantaneously flush the affected area with water for 2-3 proceeding and counsel the teacher. If acid should get into your eyes, begin flushi! ng with water immediately and rest doing so for at least 20 minutes. If on that aspire is an eye wash fountain equipped with continuously walker track water in the testing ground, use it. If acid is spilled on the laboratory bench or on the floor, void 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 extended realise after addition of the...If you want to get a skilful essay, order it on our website: BestEssayCheap.com

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