Calculate the molarity of a solution made by adding 45.5 g of NaNO3 to a flask and dissolving with water to a total volume of 3.00 L Express the concentration to three significant figures and include the appropriate units.

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.

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