What is the wavelength, in nanometers, of light with an energy content of 4.88×104 kJ mol−¹? Hint: The unit mol-¹ should be interpreted as "per mole of photons". Enter your answer with three significant figures. Enter scientific notation as 1.23E4. Do not include units. λ = 4.07e-17 nm

The rays of the Sun that cause tanning and burning are in the ultraviolet portion of the electromagnetic spectrum. These rays are categorized by wavelength: So-called UV-A radiation has wavelengths in the range of 320-380 nm, whereas UV-B radiation has wavelengths in the range of 290-320 nm. ▾ Part A Calculate the frequency of light that has a wavelength of 330 nm. V= Submit Part B E VTI ΑΣΦ VO Calculate the energy of a mole of 330 nm photons. = Request Answer V ΑΣΦ ? ? S kJ/mol

63. Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room temperature. These neutrons are most effective in initiating a nuclear chain reaction among 235U isotopes. Calculate the wavelength (in nm) associated with a beam of neutrons moving at 6.98×102m/s (mass of a neutron = 1.675×10−27 kg). Enter your answer in scientific notation.

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