B
1. ) : , Mn(OH)2, H2SO4, KHS, Na2CO3, FeOH(NO3)2.
) : (IV), , ,
:
) +2-2 (II),
Mn+2 (O-2H+1)2 (II),
+12S+4O-23 ,
+1+1S-2 ,
Na2+1+4-23 ,
Fe+3O-2H+1(N+5O-23)2 (III).
) (IV) PbO2,
Li2SO4,
ZnOHCl;
Al(H2PO4)3.
2. .
1. , 68,90 % . . .
:
 68,90 % .
= 3
| , ( ). = ()·, |
| () ? ? |
()· ;
.
n () = n (), ..
,
() = 
.
() = 8 /.
m = m + 
; 
= 68,9 .
m = 100 
= 100 68,9 = 31,1 .
() = 
= 3,61 /
() = 
,
= () ∙ = 3,61∙3 = 10,83 /, .
: () = 3,61 /; .
2. 7,2 2,24 , .. .
:
m . = 7,2
 2,24
|
n() = n(H2),
  ,
|
| (.) ? () ? |
= 11,2 /.
() = 
= 
= 36 /;
() = () + ();
() = () () = 36 8 = 28 /.
: () = 36 /;
() = 28 /.
3. (MeCl) 0,493 AgNO3. 0,86 AgCl. .
:
 = 0,493
 = 0,86
|
n(Cl ) = = n(AgCl) ..
 =  ;
|
| M (Me) ? |
= 
143,5 /.
AgCl;
;
n .
= 
,
= 
= 82,3 /.
= 
+ 
;
/.
= 
,
= 82,3 35,5 = 46,8 /.
: 
= 46,8 /.
1. (III) 500 3 0,1 ?
| : (FeCl3) = 0,1 / (0,1 ) V - = 500 c3 | FeCl3 |
|
.
|
|
|
,
(III).
(III), /:
= 56 + 3∙35,5 = 162,5 /,
= 3 ,
n = 1 .
= 
54,17 /;
10-3 .
: 
2. 800 3 25 %- 1,2 /3?
:
 = 800 c3
 25 % .
 = 1,2 /3
|
MgCl2
|
 ?
|
m - = V -ρ- = 8001,2 = 960 .
: 
3. , 40 (II) 800 3 .
:
V - = 800
 = 40
|
uSO4
 /,
|
|
(II), /.
= 64 + 32 + 64 = 160 /.
10-3 .
: 
= 0,31 /.
, 100 5,3 .
:
m - = 100
|
Na2CO3
 .
|
|
