Determine the energy, in J, of a photon with a wavelength of 335 nm. (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s)

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?

What is the wavelength (in nm) of a photon if the energy is 5.25 × 10⁻¹⁹ J? (h = 6.626 × 10⁻³⁴ J • s)

What is the wavelength (in nm) of a photon if the energy is 6.21 × 10⁻¹⁹ J? (h = 6.626 × 10⁻³⁴ J • s)

Determine the energy, in J, of a photon with a wavelength of 339nm. (h=6.626 x 10^-34 J * s and c=3.00 x 10^8 m/s)

6

A photon has a frequency of 8.37 × 10⁸ Hz. What is the energy of this photon in Joules?

Determine the energy of a photon, in J, with a wavelength of 294 nm. (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s) What is the energy (in J) of a mole of photons that have a wavelength of 681 nm? (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s)

A hydrogen atom absorbs a photon with a wavelength of 1094 nm and causes an electron to make a transition from an unknown n1 to a final n2 = 6.   Part A Calculate frequency of the absorbed photon in units of s-1.       Part B Calculate the energy change in the atom (ΔEatom in J) upon absorption of the photon.     Part C Calculate the value of n1

Determine the energy of a photon with a wavelength of 317 nm. (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s)