1 & 2. One type of sunburn occurs when skin is exposed to UV light of wavelength in the vicinity of 310 nm. a) What is the energy of a photon of this wavelength? Express your answer in joules to three significant figures. b) What is the energy of a mole of these photons? Express your answer in joules per mole to three significant figures. c) How many photons are in a 1.10 mJ burst of this radiation? Express the number of photons to three significant figures. d) These UV photons can break chemical bonds in your skin to cause sunburn (a form of radiation damage). If the 310 nm radiation provides exactly the energy to break an average chemical bond in the skin, estimate the average energy of these bonds in kJ/mol. Express your answer in kilojoules per mole to three significant figures.

Green light has a frequency of about 6.00 × 1014 s1. What is the energy of a photon of green light? Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) HA ? ... Ephoton = Value Units Submit Part C Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where 1 nm 10-° m. What is the energy of a photon of the X-rays? Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) HA ? Ephoton Value Units

When a metal was exposed to photons at a frequency of 1.45 x 105 s-, electrons were emitted with a maximum kinetic energy 3.80 x 10-19 J. Calculate the work function, 4, of this metal. J/photon What is the maximum number of electrons that could be ejected from this metal by a burst of photons (at some other frequency) with a total energy of 7.92 x 10-7 J? number of electrons:

Visible light falls into wavelength ranges of 400-700 nm, for which 1 m = 1 × 10° nm The energy and wavelength of light are related by the equation hc E = where E is energy in Joules, h is Planck's constant (6.626 x 10 34 J-s), c is the speed of light (2.998 x 10° m/s), and X is the wavelength in m. If a visible light photon has a wavelength of 447.3 nm, what is the energy of the photon (in J)? Type answer:

Please answer question 1 Part A, B, and C

determine The energy of a radio station with a frequency of 107.1 MHz. ( 7.10x10^26 J )

An electron of mass (9.11 x 10-²⁸g) moves at nearly the speed of light. Using a velocity of (3.00 x 10⁸ m/s), calculate the wavelength of the electron. Planck's constant (h) - 6.6262 x10-³⁴ J/s (J-kg. m2)

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 7.50 × 1014 Hz. (h = 6.626 x 10-34 J•s) |x 10 49 J 2 3 4 5 C 7 8. +/- х 100

Fill the chart. Fill the chart in the picture it must be 1,2,3, or 4