Take one of the spills from one of the conical flasks containing a metal salt solution. Related documents. and a weak alkali (sodium carbonate). Burn the loop end of the wire to remove any lithium salt. Note the colour and record the result. The spatula was cleaned off to make sure there is no residue on it. Lithium, which is represented by the symbolic notation, Li, is the third element on the periodic table. If the Bunsen burner flame does not change colour, then your wire is clean and you can proceed to dip it into a metal salt. Possible sources of error in this experiment were that the nichrome wire may not have been fully cleaned off every time, the color might have looked different because of other light sources, and there could have been particles in the bottom of the Bunsen burner. Join over 1.2 million students every month, Unlimited access from just £6.99 per month. This experiment will help one understand how a flame test is performed and that every metal has a unique bright line spectra. After going to see this priest it turns out that he is turning flames different colours by throwing different ground minerals on to the flame. Helpful? Engage students with some highly topical cross-curricular science, Boost students’ literacy skills with some engaging cross-curricular science, The toxic ingredient lurking in green vegetables, oxalic acid is familiar to Advanced Higher students for other reasons. As an introduction fireworks might be a good starting point. This is used in chemistry to analyse a material for type and concentration of atoms. Place the wet loop on the edge of the Bunsen flame. The spatula with the salt solution was put over the flame. The color of the flame was recorded in table 1. The Bunsen burner was set up and the flame was adjusted to the desired height. The procedure of this test is simple as it involves introducing sample of the compound or element to a non-luminous, hot flame, and examining the color of the resulting flame. I predict that all of the metals tested will emit different colors of light. This activity is designed for secondary age students but could be used with upper primary pupils. Introduction- The purpose of this lab was to see what colors are characteristic of particular metallic ions in a flame test and use their characteristic color to identify other elements. Dorwins• 2 months ago. As the electron returns to its ground state, it has more energy to disperse, which means the color has a higher frequency/shorter wavelength. Hazel Banawis. When preparing for use, the excess water can be squeezed from the spills that have been soaking in water overnight before placing some of them in each of the conical flasks containing the metal salt solutions. Get a verified writer to help you with Chemistry Lab Experiment: The Flame Test. This would solve the problem of the world becoming over-populated and would help prevent the spread of disease. This is not an example of the work written by professional academic writers. Every element emits a different flame color or colors. Flame Test Lab. Spray with the sodium salt solution. Flame Test Experiment. This is the basis of flame tests. University. Providing oral and written explanations of my observations, based on scientific evidence and understanding. As they return to their ground state, they emit visible light. After setting up my equipment I will then be ready to start the experiment. View the color change in the flame and note it in the data table. The noble metals gold, silver, platinum, palladium, and some other elements do not produce a characteristic flame test color. Record the metal salt solution and the flame colour. The electrons "jump" from their ground state to a higher energy level. 119 47. If it persists then go seek medical attention. 1. Many metals produce green flames, and there are also various shades of red and blue. These colours are also often used in fireworks to give the different colours we see when they burn. Turn the collar on the Bunsen burner so that you have an invisible or pale blue flame. If no solid is formed add more ethanol. All Rights Reserved.

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