Some chemical reactions, such as formation of ozone in Earth's stratosphere, can be initiated by light that has a wavelength less than some particular value. Calculate the longest wavelength (nm) that can provide an energy of at least 450 kJ/mol. nm

X-rays are commonly applied in medical practices. It is a form of electromagnetic radiationused to produces images of bones and other body parts. Medical practitioners are able toexamine bone fracture and abnormalities in body organs by using this technique. Given wavelength of an x-ray photon is 2.70 Å, compute its frequency (in hertz) and energy (in joules). (1 Å = 10-8 cm)

Radio waves from an FM radio station have a frequency of 106.1 MHz. Calculate the energy of one photon of light at this frequency.

Microwaves have wavelengths between 1mm and 10mm, Given these wavelengths, what energy is possible for a microwave to have? O 1.9878 x 10-25 O 1.9878 x 1020 O 1.9878 x 1017 O 1.9878 x 10 22

In Einstein's photoelectric experiment, the kinetic energy of an electron displaced from a metal by a photon was the difference between the energy of a photon and a threshold energy value for the metal. If you were to perform a similar experiment with the metal magnesium, which has a threshold energy of 5.86 × 10⁻¹⁹ J, and ultraviolet light of wavelength 55.5 nm, what would be the kinetic energy (in J) of the electron displaced?

The 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)

The 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)

The electron microscope uses the wave property of electrons to observe very small objects. A moving electron has a wavelength described by the de Broglie equation. What would be the kinetic energy, in J, of an electron with a wavelength of 0.485 nm, which would be equivalent to the wavelength of electromagnetic radiation in the X-ray region? (The mass of an electron is 9.11 × 10-28 g.)

The 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 6.70 × 1014 Hz. (h = 6.626 × 1034 J•s)

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/mol