Question

4. Sodium lamps are commonly used to illuminate highways because of their intense yellow- orange emissions at 589 nm a. Calculate the energy, in joules, of one photon of this light. b. Calculate the energy, in kilojoules, of one mole of such photons 5. What is the de Broglie wavelength (in nm) associated with a 2.5 g Ping-Pong ball traveling at 15.6 m/s? 6. What are the possible values of I and what are the possible subshells for an e with n 4? 4. Calculate the standard enthalpy of formation of CS2 (I) given that: 393.5 kJ/mol C(graphite) +O2 (3)CO2 (g) H SO2 (g) AHO 296.1 kJ/mol S(rhombic) + O2 (g) AH° =-1072 kJ/mol CO2 (g) + 2SO2 (g) -> CS2(I) + 302 (g)

Answer 1

19 2 忏 5.093x10's! EnnFF 2么ペ咝 bo Tha emo = 6, 23X1023 X 33-746 2 χιο20 丁

5 31 X10 m s to S 2 Ja ms

Man Aneem mome This ac numher cn-*) 0-4-S t4 Shen one elamen

.c 393.5 t (-592.2)+1072)阿!