, , . . , . c , :
, (19.1)
n .
, . . , , . :
, (19.2)
δ , , [ δ ] = 0.
, , . .
M = m / (19.3)
, (19.1) (19.2).
, , , . .
, (19.4)
(19.5)
d ; ( ).
, . .
, (68,3 %) 0 m; 0 2m 95,4%, 0 3 m 99,7% . , 100 2 , 1000 3 . ∆. , . . ∆.= 3 . ∆. = 2 . , ∆. .
, .
. , , , - . , l = 110 ml = 2 ml/l = 1/5500, ∆. = 3 = 6 ∆./ l = 1/1800.