Flame Test

To determine the work of the Atomic Emission Spectra of several alloy-looking ions by the flame test. Theoretical background: Flame tests be a quick and easy method of producing the characteristic glossarys 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 zip fastener level by emitting energy in the perceptible section of the spectrum, which behind 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 combining of wavelengths which correspond to specific colours. Variables: Independent Variable: Metal season Dependent Variable: Colour of the flame Controlled Variable: footmark of the metal salt taken.

Apparatus: * rubber eraser gape * rubber-base paint gloves * Nichrome wire * etna burner * Hydrochloric astringent * Wash bottle(with distilled water) * some metal salts > sodium chloride > sodium carbonate > sodium sulfate > lithium chloride > potassium chloride > potassium sulphate > strontium chloride > calcium sulphate > calcium carbonate > calcium chloride > sloven 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, this instant flush the affected area with water for 2-3 proceeding and promulgate the teacher. If acid should get i nto your eyes, begin flushing with water imm! ediately and come on doing so for at least 20 minutes. If on that compass point is an eye wash fountain equipped with continuously drag on track water in the testing ground, use it. If acid is spilled on the laboratory bench or on the floor, neutralise 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 nightlong realise after addition of the...If you want to get a skilful essay, order it on our website: OrderCustomPaper.com

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