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Name ___________________ Chemistry Period ______ Date ____________________ Calculations – for each compound, determine the wavelength, frequency, and energy of the light produced. Show all work FLAME TEST LAB Purpose: To determine the energy of light released from atoms of certain metallic elements. Procedure: 1. Label each test tube with the chemical formulas of the compounds to be tested. 2. Get a scoopful of each compound and place in the appropriate test tube. 3. Get 5 popsicle sticks. 4. Fill beaker with about 50 ml of water. 5. Dip a stick in the water and then into a test tube to coat the stick with the chemical. 6. Hold the stick over the burner until it changes color. 7. Repeat steps 5-6 for the remaining compounds. Data Compound: __________ Wavelength of light: ___________ Frequency of light : ___________ Energy of light : _______________ Compound: __________ Wavelength of light: ___________ Frequency of light : ___________ Energy of light : _______________ Compound: __________ Compound: __________ Wavelength of light: ___________ Wavelength of light: ___________ Frequency of light : ___________ Energy of light : _______________ Frequency of light : ___________ Energy of light : _______________ Questions: 1) Explain how electrons become “excited”. Compound: __________ Wavelength of light: ___________ 2) What is the relationship b/w the energy of the light given off and the energy lost by the electron? Frequency of light : ___________ Energy of light : _______________ 3) The electrons of which compound show the greatest change in energy? 4) Is the color produced by the metal or the nitrate? Explain.