# chemistry

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Compute the empty cells. Consider PTN conditions (For SO2, NO, NO2, and C5H8 express the mass concentration in Kg S m-3, Kg N m-3, Kg C m-3, respectively).

Gas/Unit
mg m-3 molecules ppm ppb cm-3 %
O3 180

SO2 4.0 x 1015

NO 60

NO2 10

NOx

CO 30

C5H8 6

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