NH4Cl NaOH (~60%). ʳ .
. :
NH4Cl + NaOH → ________________________________________
_______________________________________________________________________
6 NH4+
, . . ?
_______________
7
ϳ 2 ( ). NH4OH, HCl. . (NH4Cl), :
NH3 + HCl → NH4Cl
8
(NH4)2Cr2O7, , , . , . ! Cr !
г :
(NH4)2Cr2O7 → N2 + Cr2O3 + 4H2O.
: .
1 .
2 ? .
3 .
4 ?
5 .
6 , , . .
7 HNO3 䳺 .
8 , ( , , ).
9 ?
10 (NaNO3, Cu(NO3)2, AgNO3.
11 (NH4Cl, (NH4)2Cr2O7).
12 䳿 , . ?
13 :
N2 → NH3 → NO → NO2 → HNO2 → NO2
↓
NH4Cl → NH3
8
: ί , ò˲
Ҳ, () ()
: .
|
|
: NaHPO4, Cal2, Sr(NO3)2, Bal2, Hl, Na3PO4, (NH4)2MoO4, HNO3, SbCl, Bi(NO3)2, H2O ..
1
, , : 2-4 3-4 . ³ , . .
CaCl2 + Na2HPO4 → _______________________________________
__________
SrCl2 + Na2HPO4 → ________________________________________
______________________________________________________________________
BaCl2 + Na2HPO4 → ________________________________________
______________________________________________________________________
2 /. . :
CaHPO4↓ + Hl → _____________________________________________
______________________________________________________________________
SrHPO4↓ + Hl → ____________________________________________
_______________________________________________________________________
BaHPO4↓ + Hl → _______________________________________________
_______________________________________________________________________
, 䳺 .
2 ó
5-6 . , 2-3 , - . ³ .
.
________________________________________
ó . ó , . ?
________
________________