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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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If the frequency of a photon is 4.17x10^14 Hz, what id the energy in kJ/mol of 1 mol of these photons?
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- What is the energy (in J) of a photon with a frequency of 7.23 × 10¹⁴ s⁻¹? (h = 6.626 × 10⁻³⁴ J • s)arrow_forwardWhat is the energy of a photon with a frequency of 7.30x 10^14 s^-1?(h=6.626x10^-34J.s)arrow_forwardA photon has a frequency of 4.0 × 10° Hz. What is the energy of this photon? J 1 6. C 7 8 9. +/- X 100arrow_forward
- 2. A laser pointer used in the classroom emits light at 6550 A, at a power of 4.00 mW. (One watt is the SI unit of power, the measure of energy per unit of time. 1 W = 1 J/s). How many photons are emitted from the pointer in 115 seconds?arrow_forwardA radiation has the frequency of 1.88 x1015 Hz , calculate energy of photon.arrow_forwardWhat is the energy (in J) of a mole of photons that have a wavelength of 515 nm? (h= 6.626 x 1034 Js and c = 3.00 x 108 m/s)arrow_forward
- A photon has a frequency of 8.37 × 10⁸ Hz. What is the energy of this photon in Joules?arrow_forwardThe scattering of sunlight by the mixture of gas molecules in air results in the blue color of the sky. Calculate the energy (in Joules) of a single photon of blue light with a frequency of 6.30 × 10¹⁴ Hz. (h = 6.626 × 10⁻³⁴ J • s)arrow_forwardThe scattering of sunlight by the mixture of gas molecules in air results in the blue color of the sky. Calculate the energy (in Joules) of a single photon of blue light with a frequency of 7.20 × 10¹⁴ Hz. (h = 6.626 × 10⁻³⁴ J • s)arrow_forward
- Radiation in the ultraviolet region of the electromagnetic spectrum is quite energetic. It is this radiation that causes dyes to fade and your skin to develop a sunburn. If you are bombarded with 1.00 mol of photons with a wavelength of 320. nm, what amount of energy, in kilojoules per mole of photons, are you being subjected to? Energy = kJ/molarrow_forwardWhat is the energy (in J) of a mole of photons that have a wavelength of 503 nm? (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s)arrow_forward
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