..
2007
绾у勾銆婂垎鏋愬寲瀛︺�嬭瘯棰?/p>
涓�銆佸～绌洪
.
1
銆?/p>
鍒嗘瀽鍖栧鐨勪换鍔℃槸
_____________
锛涘畾閲忓垎鏋愬寘鎷殑涓昏姝ラ鏈?/p>
_____________________
锛涜帿灏?/p>
锛?/p>
Mohr
锛夋硶鍜屼經灏斿搱寰凤紙
Volhard
锛夋硶鎵�鐢ㄦ寚绀哄墏鍒嗗埆涓?/p>
_______________________________
锛涚簿瀵?
搴︿笌鍑嗙‘搴︾殑鍏崇郴鏄?/p>
_____________
锛涢珮閿伴吀閽炬硶鍒嗘瀽閾佹椂锛屽鏈夊皯閲?/p>
Cl
-
瀛樺湪锛屽垯鍒嗘瀽缁撴灉浼氬亸
楂橈紝涓昏鍘熷洜鏄?/p>
________________________
锛涢棿鎺ョ閲忔硶搴旀敞鎰?/p>
__________
銆?/p>
2
銆?/p>
鐢ㄧ～閰告淮瀹?/p>
NaOH
鏃讹紝鑻ョ～閰哥殑
鐗╄川鐨勯噺娴撳害涓?/p>
C
B
锛屽垯纭吀瀵?/p>
NaOH
鐨勬淮瀹氬害涓?/p>
______________________________________________________
锛?/p>
宸茬煡璇曟牱涓?/p>
K
2
O
鐨勮川閲忓垎鏁颁负
a
锛?/p>
鍒欐崲绠?/p>
鎴?/p>
K
3
PO
4
鐨勫寲瀛﹀洜鏁颁负
______________________________
銆?/p>
3
銆?/p>
鍒ゆ柇涓嬪浘鎵�绀烘淮瀹氭洸绾跨被鍨嬶紝骞堕�夋嫨涓�閫傚綋鐨勬寚绀哄墏銆?/p>
锛堣涓嬪浘銆佽〃锛?/p>
鏇茬嚎鐨勭被鍨嬩负
____________________
锛屽疁閫夌敤
_________
涓烘寚绀哄墏銆?/p>
p H
鎸?/p>
绀?/p>
鍓?/p>
鍙樿壊鑼冨洿
p H
鑻?/p>
鑳?/p>
榛?/p>
1. 3
鈥?/p>
3. 2
鐢?/p>
鍩?/p>
姗?/p>
3. 1
鈥?/p>
4. 4
10
鐢?/p>
鍩?/p>
绾?/p>
4 .4
鈥?/p>
6. 2
9.7
閰?/p>
閰?/p>
8. 0
鈥?/p>
10.0
8
纭?/p>
鑳?/p>
11.0
鈥?/p>
12. 3
7.7
6
4
2
50
100
150
200
鏍囧噯婧舵恫鍔犲叆閲?/p>
%
4
銆?/p>
婊村畾鍒嗘瀽鐨勬柟寮忓寘鎷?/p>
______________________________________________
锛涚ず宸惛鍏夊厜搴︽硶涓庢櫘閫氬惛
鍏夊厜搴︽硶鐨勫樊鍒槸
__________________________________________
銆?/p>
5
銆?/p>
鏌愪笁鍏冮吀鐨勭數绂诲父鏁板垎鍒槸
K
a1
= 1
脳
10
-2
锛?/p>
K
a2
= 1
脳
10
-6
锛?/p>
K
a3
= 1
脳
10
-12
銆傜敤
NaOH
鏍囧噯婧舵恫婊村畾
鏃舵湁
_______
锛堜釜锛夋淮瀹氱獊璺冦�傛淮瀹氳嚦绗竴璁￠噺鐐规椂锛屾憾娑?/p>
pH
锛?/p>
_________
锛屽彲閫夌敤
_________
浣?/p>
鎸囩ず鍓傦紱婊村畾鑷崇浜岃閲忕偣鏃?/p>
pH=_________
锛屽彲閫夌敤
__________
浣滄寚绀哄墏銆?/p>
6
銆?/p>
NH
4
H
2
PO
4
姘存憾娑茬殑璐ㄥ瓙鏉′欢寮忎负
__________________________________________
銆?/p>
7
銆?/p>
鐢ㄨ崏閰搁挔涓哄熀鍑嗙墿璐?/p>
,
鐢ㄧ洿鎺ユ淮瀹氭硶鏍囧畾楂橀敯閰搁捑婧舵恫鏃跺簲娉ㄦ剰鐨勬潯浠跺寘鎷細
_____________________________________________________________________________
銆?/p>
8
銆?/p>
鎽╁皵鍚稿厜绯绘暟
蔚
鐨勭墿鐞嗘剰涔夋槸锛?/p>
___________________________________________________________________________
銆?/p>
浜屻�佸崟椤归�夋嫨棰?/p>
1
銆佷笅鍒楀弽搴斾腑婊村畾鏇茬嚎瀵圭О鐨勫弽搴旀槸锛?/p>
A
锛?/p>
銆?/p>
A
銆?/p>
Ce
4+
+
Fe
2+
=
Ce
3+
+
Fe
3+
B
銆?/p>
2 Fe
3+
+ Sn
2+
= 2 Fe
2+
+ Sn
4+
C
銆?/p>
I
2
+ 2 S
2
O
3
2-
=
2I
-
+
S
4
O
6
2-