orange/ ved Metal/Color of Flame A(nm) 2(m) () E 2. 18x10 2 Cacla deep orange 100 7x10-7 Orel CuCl2 blue green 520 15.2x107 AE-2.1x10P) Lich ved 740 7.4x107 ILCI pink/violet 400 4x10-T --2. 18 x 10 NaCl 20 yellow / ovance 6.2x107 Srol 720 7.2 x 10 nt- final energy evel ni-initial onergy Post-Lab Questions ve 1. Use table 1 in the Background section to record the approximate wavelength of light emitted for each metal in Data Table 2 2. Convert each of the wavelengths in the Data Table from nanometers to meters. Record the wavelength in meters in Data Table 2. Insert picture to show work on All in the space below. 700 CVX10") 520(X 5. 2x10? 740 (110) 400(lvio 20(VID) 720 VIO) 3. Based on the data collected, which equation will you use to calculate AE? Does the equation have any constants? If so what are they? nm 7x10 ? 1.A 107 4X10 1.2x10 1:20 4. Calculate the change in energy, AE, for each metal. Insert picture to show work on ALL in the space below. Record the values in Joules in Data Table 2. a. 5. Predict the color of the flame if the following materials were heated in the flame. Explain you predictions. Copper (II) nitrate, Cu(NO3)2 blue green b. Sodium Sulfate, Na2SO4 yellow organe Potassium nitrate, KNO, light purpe Niolet c. 6. Do you think we can use the flame test to determine the identity of unknowns in a mixture? Why or why not? 7. List the colors observed in this lab from the shortest wavelength to the longest wavelength. 8. List the colors observed in this lab from the smallest frequency to the largest frequency 9. List the colors observed in this lab from the smallest energy change to the largest energy change. 10. What is the relationship between energy, frequency, and wavelength? 11. Colorful light emissions are applicable to everyday life. Where else have you observed colorful light emissions? Are these light emission applications related? Explain