Explain enable comparison with gaseous concentrations

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Reference no: EM13265050

Concentrations of aerosol constituents are sometimes expressed as ppb (mole fraction) to enable comparison with gaseous concentrations expressed in ppb. The unit ppb (mole fraction) is evaluated as RT x concentration of aerosol constituent in nanomoles/m^3. Show that for the nitrate ion, NO_3^-, 1 ppb (mole fraction) is equivalent to 2.14 ppb (mass fraction) at T=293K and 1 atm.

Reference no: EM13265050

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