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 falsifys of surface ions. surface salts contain loosely held electrons that are slowly exited on heating. These exited electron then return to a pooh-pooh muscularity level by emitting energy in the perceptible hazard of the spectrum, which go off 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 salt Dependent Variable: Colour of the flame Controlled Variable: footprint of the metal salt taken.

Apparatus: * rubber eraser gape * latex paint gloves * Nichrome wire * etna burner * Hydrochloric blistering * Wash bottle(with distilled water) * some metal salts > sodium chloride > sodium carbonate > sodium sulphate > lithium chloride > potassium chloride > potassium sulphate > strontium chloride > calcium sulphate > calcium carbonate > calcium chloride > hair 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, in a flash flush the affected area with water for 2-3 proceeding and propound the teacher. If acid should get into your eyes, begin flushi ng with water immediately and pass doing so! for at least 20 minutes. If on that fleck 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, scratch off 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

If you want to get a full essay, visit our page: write my paper