Alaser produces 22.0 mw of light. in 3.00 hr , the laser emits 4.53×10^20 photons. what is the wavelength of the laser?

Energy of a photon can be calculated from the product of the Planck's constant and the frequency of the light. We can calculate the wavelength from the frequency that we can obtain. We do as follows:

E = hv 
22000 ( 3 ) (3600) = 6.26x10^-34 (v)
v = 3.7955x10^41

wavelength = c/v = 3x10^8 / (3.7955x10^41) = 7.90x10^-34 m

answer: mole of the gas

answer: mole of the gasexplanation:

answer: mole of the gasexplanation: this is because 1 mole of a gas is 22.4dm³, which is use in ideal gas

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.