( ) m . - , 1 . m , , , ( )
m() = / ( 2);
m() = / ;
m() = / ;
m() = / ( ).
, , .
: m(Fe2O3) = (Fe2O3)/(32) = 160/6 = 26,7 /;
m (H2SO4) = M(H2SO4)/2 = 98/2 = 49 /;
m [Ca(OH)2] = M(Ca(OH)2)/2 = 74/2 = 37 /;
m [Al2(SO4)3]= M[Al2(SO4)3] = 342/2 = 171 /;
. , ( ), , .
: , .
: m1 / m2 = (1)/(2) (1.2)
: m1 m2 , .
(1)) (2) , /.
: ( ) Na2CO3, 1,96 H2SO4.
: : m(Na2CO3)/m(H2SO4) = M(Na2CO3)/M(H2SO4)
, :
m (Na2CO3) = 106 /(21) = 53 /; M(H2SO4) = 98/21 = 49 /.
: / 1,96 = 53 / / 49 /, = 2,12 .
: 2,12 .
- : -, , -, , : P1V1 / T1 = P2V2 / T2
, , P = const (P1 = P2) -: , -: pV= (m / M) RT
m - , ;
M - /;
p , ;
V , 3;
T - , ;
|
|
R - (8,314 /( ) 0,082 /( )).
. 17C 250 (II) 84 ?
. CO :n(CO) = m(CO) / M(CO) = 84 / 28 = 3 ,
CO .. 3 22,4 = 67,2
- -:
(P V) / T = (P0 V0) / T0
: V(CO) = (P0 T V0) / (P T0) = (101,3 (273 + 17) 67,2) / (250 273) = 28,93
, 1 ( ) 1 .
, :
1. 17. (.=29).
. DH2 = M- / MH2 = - / 2; -= 2DH2 = 34; D = M- / M. = 34 / 29 = 1,17
2. , , 15, 50 35% .
. D( ) = M / M. = / 29
M = (15 28 + 50 40 + 35 44) / 100 = (420 + 2000 + 1540) / 100 = 39,6
D( ) = M / 29 = 39,6 / 29 = 1,37