What is the pressure exerted by 0.703 mol o2 in a 15.0 l container at 314 k. express your answer in atmospheres?

This question is based on the ideal gas law , where is the pressure, is the volume, is number of moles, is the gas constant which can take many values depending on the units. In this problem we will use to get our pressure in atm. So we male P the subject of the formula

The 410 mm wavelength corresponds to the n=6 to n=2 transition, the 434 mm wavelength corresponds to the n=5 to n=2 transition.

Planck's equation: E=hc/wavelength
n=6 to n=2 corresponds to a higher energy transition and hence shorter wavelength, 410nm.