For this reaction: NH3 + O2  NO + H2O a. How many moles of oxygen are needed to react with 3.24 moles of ammonia?

this is hard I'm a come back when I solve it

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.