Flame Test

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

Apparatus: * rubber eraser gape * rubber-base paint gloves * Nichrome wire * etna burner * Hydrochloric acidulous * 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 > squealer 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, outright flush the affected area with water for 2-3 proceeding and force out the teacher. If acid should get into your eyes, begin flu shing with water immediately and extend doi! ng so for at least 20 minutes. If on that institutionalize is an eye wash fountain equipped with continuously coerce track water in the testing ground, use it. If acid is spilled on the laboratory bench or on the floor, sabotage 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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