Once the alcohol hits your bloodstream it affects every organ and part of your body, including the brain where the alcohol produces intoxication. The more you drink and the faster you drink; the more alcohol enters your bloodstream. BAC increases much faster when drinking on an empty stomach.
I'll assume that the lung volume is 5.30 L. 1L= 1dm 3 5.30dm 3 x ( 1m/ 10 dm )3 x ( 1.5 ug pb / m 3) x ( 1 g pb /1 x 10 6 ug pb ) x ( 1 mole pb /207.2 g pb) x( 6.02 x 10 23 pb atoms / 1 mole pb) =2.3 x 10 13 pb atoms
