.
( ).
, .
.
1 - . , . , , , . , :
ü , .. , ( 0,050,1%);
ü ;
ü ;
ü .
, , , , .
2 - . , ., , . , NaOH . , H2C2O4∙2H2O. , ( NaOH) , , , .
3 - . . , 1 , 0,1 /, 0,05 /. , 1 , , .
| , , | |
| , |
|
|
|
| () , |
:
1. .
| m (x) | (x) | (1/ z x) | w % | (x) | |
| w %(x) | w%r10 / M(x) | ||||
| (x) | |||||
| (1/ z x) | |||||
| (x) | |||||
| m(x) |
: , ?
: () = n (x) / V -, /, n (x) = m (x) / M (x), . () = m (x) / M (x) V -, /. : () = m (x) 1000 / M (x) V -, / m (x) = C (x) M (x) V / 1000, . w % = m (x) 100% / m -, m - = r - V -, m (x) = w % r - V - / 100%
m (x) = C (x) M (x) V - / 1000 = w % r - V - / 100%, C (x) = w % r 10 / M (x), /. .
2. :
) ZnSO4
) HCl
) KNO3
) AlCl3
3. V = 2 () = 0,5 / ____ :
) 80
) 40
) 20
) 60
4. (10 190 ) :
) 0,1
) 0,05
) 0,01
) 0,4
5. :
..
...
.
..
-
.
..
..
: .
. .
.
:
1. 98% (r = 1,84 /) 200 10% (r = 1,05 /)?
2. , 75 500 .
3. 0,9% (r = 1,0 /)?
4. 5% 20% ?
5. 3,5 /, %.
|
|
|
6. /, (Na+) = 140 /, (K+) = 10 /, (Cl-) = 110 /, (HCO3-) = 40 /.
7. 20-35 CO(NH2)2, . - , 590 /.?
8. ( ) . 15 3% . 180 1% (r = 1,0 /)?
9. 10% 15 / . 10% (r = 1,0 /), 75 .
10. . : 0,01% 1 . 0,010-0,025 . 0,01% , .
11. . : 0,25 . 100 /. 4-6 . , 10 :
) ;
) .
12. 5 0,095 / . 2,5 . /.
13. MnO4, :
) 1 KMnO4 0,1 /;
) 0,5 KnO4 c 0,05 / .
14. 24, 0,5 . , . KMnO4 c 0,01 / . 1 , 0,5 5 KMnO4.
15. (%) , 10 20 0,2 / .
1. .
2.
