SOLVED

11) Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye. The energy of one photon of this light is ________ J. A) 1.14 × 10-31 B) 3.46 × C) 3.46 × D) 1.14 × 10-22 E) 2.89 × 12) How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 616 kJ of energy? A) 2.08 × 1013 photons B) 3.06 × 1030 photons C) 1.83 × 1024 photons D) 4.03 × 1028 photons E) 2.48 × 1025 photons 13) How much energy (in kJ) do 3.0 moles of photons, all with a wavelength of 675 nm, contain? A) 177 kJ B) 354 kJ C) 418 kJ D) 532 kJ E) 238 kJ 14) Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye. The energy of one photon of this light is 3.46 × J. Thus, a laser that emits of energy in a pulse of light at this wavelength produces ________ photons in each pulse. A) 2.7 × B) 7.8 × 10-24 C) 2.2 × D) 3.8 × E) 6.5 × 15) The de Broglie wavelength of an electron with a velocity of 7.40 × 106 m/s is ________ m. The mass of the electron is 9.11 × g. A) 1.02 × 1010 B) 1.02 × 1013 C) 9.83 × 10-17 D) 9.83 × 10-14 E) 9.83 × 10-11 16) Determine the mass of a ball with a velocity of 40.0 m/s and a wavelength of 8.92 × 10-34 m. A) 29.7 g B) 594 g C) 2.36 g D) 53.8 g E) 18.6 g 17) Determine the velocity of a marble (m = 7.75 g) with a wavelength of 3.46 × 10-33 m. A) 40.5 m/s B) 2.47 m/s C) 24.7 m/s D) 38.8 m/s E) 52.9 m/s 18) Which of the following transitions (in a hydrogen atom) represent emission of the longest wavelength photon? A) n = 1 to n = 3 B) n = 3 to n = 1 C) n = 3 to n = 5 D) n = 4 to n = 2 E) n = 5 to n = 4 19) Which of the following transitions (in a hydrogen atom) represent absorption of the smallest frequency photon? A) n = 5 to n = 6 B) n = 5 to n = 1 C) n = 3 to n = 1 D) n = 1 to n = 4 E) n = 1 to n = 2 20) Choose the transition (in a hydrogen atom) below that represents the absorption of the shortest wavelength photon. A) n = 1 to n = 2 B) n = 2 to n = 3 C) n = 4 to n = 6 D) n = 6 to n = 5 E) n = 3 to n = 1