Given c=λv and E=hv calculate the energy associated with 665 nm light.
(h=6.626X 10-34 J·s).
Given c=λv and E=hv calculate the energy associated with 665 nm light. (h=6.626X 10-34 J·s).
What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 x 10 m/s; h = 6.63 x 10-34 J·s; NA = 6.022 x 1023 moles) Select one: a. 6.46 x 10-16 J b. 6.46 x 10-25 c. 2.46 x 10-4 J Od. 12.4 kJ O e. 246 kJ
Calculate the energy in joules of microwave radiation of wavelength 12.7 centimeters. (E = hv, h = 6.63 x 10" 1-34 J'sec; speed of light = wavelength x V, speed of light = 3.0 * 108 meters/sec.) Select one: a. 7.3 x 10-19 O b.3.6 x 10-18 c. 4.9 % 1019 O d. 1.6 10-24
Calculate the energy of 586 nm light in units of kJ/mol. h = 6.626 x 10-34 Js;c= 3.00 x 108 m/s 420 kJ/mol 3.50 x 10-19 kJ/mol 204 kJ/mol 2.04 x 105 kJ/mol 3.40 x 10-28 kJ/mol
Calculate the energy of 586 nm light in units of kJ/mol. h = 6.626 x 10-34 Js:c = 3.00 x 108 m/s 3.40 x 10-28 kJ/mol 2.04 x 105 kJ/mol 204 kJ/mol O 420 kJ/mol 3.50 x 10-19 kJ/mol
17 Calculate the energy associated with 3.00 moles of photons from red light with 750 nm wavelength. A. 479 kJ B. 160 kJ C. 215 kJ D. 320 kJ E. 640 kJ
6) Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron drops from the n the H atom are given by En-2.18 x 10-18 J (1/n2). (c = 3.00 x 108 m/s; h= 6.63 x 10-34 J. 7 to the n 4 principal energy level. Recall that the energy levels of s) A) 4.45 x 10-20 nm B)2.16 x 10-6 nm C) 9.18 x 10-20 nm D) 1.38 x 1014 nm E) 2.17 x...
Item 5 Part A Take h to have an exact value of 6.63 x 10-34 J·s for significant figure purposes, and use hc = 1.24 x 10eV nm (three significant figures). The work function of a material is 3.0 eV If the material is illuminated with monochromatic light(= 310nm), what is the stopping potential? Express your answer using two significant figures. IVO AZO ? Vo = V Submit Request Answer Part B What is the cutoff frequency? Express your answer...
The energy of a photon of light is given by E=hf where h=6.64x10-34 J∙s is the Planck constant and f is the frequency of the light. The photoelectric effect is the principle that underlies the operation of solar cells, for example the ones in your handheld calculator. Since photons of light have energy that depends on their frequency, different colours of light have different amounts of energy. Using the relationship between frequency (f), wavelength (λ), and the speed of light...
6. Determine the frequency (V) and energy (E) of a photon with a wavelength ) of 595 nm if E hv and v chh, where h 6.63 x 10-34 J s (Planck's constant), c 3.00 x 10+s m/s (speed of light), and 1 m 10*9 nm. Show all units and use the correct number of significant figures.
Question 3: Properties of light (30 points) The energy of one photon of the microwaves in home microwave ovens is 2.45 x 10-23 J. (c=av, E = hv, h = 6.626 x 10-34 J·s, c = 3.00 x 108 m/s) (a) What is the wavelength of this microwave photon? (b) Is this radiation more or less energetic than radio wave with frequency of 1.98 x 100 Hz? Use the energy calculations to support your answer. (c) Does this radiation have...