( ), .
1. (%). , 15% NaCl , 100 15 NaCl 85 .
2. ( ) , . (N2)
N2 = n2/(n1 + n2)
(N1)
N1 = n1/(n1 + n2)
n1, n2 .
3. , . ( ) . , 2 H2S04 , 2 , . . = 2 /.
4. , - . m. , m = 2 / (2) , () 2 H2S04. .
5. , . , , ( ) . , 2 . H2S04 , 2 , .. (H2S04) = 2 /.
. , ( ) . , . . , , .
50 15 50 25
25 25
10 25 0 25
:
) 25% 50 10% 15 50% 25 10%.
) 50% 25% 25 25 .