鈥?/p>
绮?/p>
鍝?/p>
鈥?/p>
璇?/p>
鍗?/p>
鈥?/p>
鈥?/p>
鎺?/p>
鑽?/p>
鈥?/p>
涓?/p>
杞?/p>
鈥?/p>
绗?/p>
8
璁?/p>
姘存憾娑蹭腑鐨勭瀛愬钩琛?/p>
涓�銆侀�夋嫨棰?/p>
(
鏈鍖呮嫭
8
涓皬棰?/p>
,
姣忓皬棰?/p>
6
鍒?/p>
,
鍏?/p>
48
鍒?/p>
)
1
.
灏?/p>
n
mol路L
-1
姘ㄦ按婊村叆
10 mL 1.0 mol路L
-1
鐩愰吀涓?/p>
,
婧舵恫
pH
鍜屾俯搴﹂殢鍔犲叆姘ㄦ按浣撶Н鍙樺寲鏇茬嚎濡傚浘鎵�绀恒�備笅鍒楁湁
鍏宠娉曟纭殑鏄?/p>
(
)
A.
n
=1.0
B.
姘寸殑鐢电绋嬪害
:
B>C>A>D
C.
C
鐐?/p>
:
c
(N
)=
c
(Cl
-
)=1.0 mol路L
-1
D.25
鈩冩椂
,NH
4
Cl
鐨勬按瑙ｅ父鏁?/p>
(
K
h
)=(
n
-
1)脳10
-7
绛旀
D
瑙ｆ瀽鏍规嵁鍥剧煡
,
浜岃�呭畬鍏ㄥ弽搴旀椂姘ㄦ按浣撶Н灏忎簬
10 mL,
鍒欐皑姘存祿搴﹀ぇ浜?/p>
1.0 mol路L
-1
,
鍗?/p>
n
>1.0,A
閿欒銆?/p>
A
鐐规憾娑蹭腑
娌℃湁婊村姞姘ㄦ按
,
婧惰川涓?/p>
HCl,
B
鐐规憾娑叉俯搴︽渶楂?/p>
,
璇存槑浜岃�呮伆濂藉畬鍏ㄥ弽搴旂敓鎴愭隘鍖栭摰
,
鎵�浠ユ憾璐ㄤ负
NH
4
Cl,
C
鐐规憾娑蹭腑婧?/p>
璐ㄤ负
NH
4
Cl
鍜?/p>
NH
3
路H
2
O,
D
鐐规憾娑蹭腑婧惰川涓?/p>
NH
4
Cl
鍜?/p>
NH
3
路H
2
O,
涓?/p>
c
(NH
4
Cl)<
c
(NH
3
路H
2
O),
A
鐐广�?/p>
D
鐐规姂鍒舵按鐢电
,
涓?/p>
A
鐐规姂鍒舵按鐢电绋嬪害澶т簬
D
;
B
銆?/p>
C
鐐逛績杩涙按鐢电
,
浣?/p>
B
鐐逛績杩涙按鐢电绋嬪害澶т簬
C
;
鎵�浠ユ按鐢电绋嬪害澶у皬椤哄簭鏄?
B>C>D>A
,B
閿欒銆?/p>
C
鐐规憾娑插憟涓�?/p>
,
鍒?/p>
c
(N
)=
c
(Cl
-
),
鍥犱负婧舵恫浣撶Н鏄洂閰哥殑浜屽�?/p>
,
鎵�浠?/p>
c
(Cl
-
)
鏄師鏉ョ殑涓�鍗?/p>
,
涓?
0
.5 mol路L
-1
,C
閿欒銆?/p>
C
鐐规憾娑插憟涓�?/p>
,
c
(H
+
)=
c
(OH
-
)=1.0脳10
-7
mol路L
-1
,
鍒?/p>
c
(N
)=
c
(Cl
-
),
c
(Cl
-
)
鏄師鏉ョ殑涓�鍗?/p>
,
鍒?/p>
C
鐐?/p>
c
(N
)=
c
(Cl
-
)=0.5 mol路L
-1
,
C
鐐规憾娑蹭腑
c
(NH
3
路H
2
O)=0.5
n
mol路L
-1
-
0.5 mol路L
-1
,
姘磋В骞宠 甯告暟
K
h
=
=(
n
-
1)脳10
-7
,D
姝ｇ‘銆?/p>
2
.
鍦?/p>
25
鈩冩椂
,
鍏充簬
0.1 mol路L
-1
CH
3
COONa
婧舵恫鐨勮娉曟纭殑鏄?/p>
(
)
A.
鍔犳按绋�閲婂悗
,
婧舵恫涓?
涓嶅彉
B.
鍔犲叆灏戦噺
NaOH
鍥轰綋
,
c
(CH
3
COO
-
)
鍑忓皬
C.
璇ユ憾娑蹭腑
c
(Na
+
)>
c
(CH
3
COO
-
)>
c
(H
+
)>
c
(OH
-
)
D.
涓?/p>
0.1 mol路L
-1
纭濋吀绛変綋绉贩鍚堝悗
:
c
(Na
+
)=
c
(N
)>
c
(CH
3
COO
-
)>
c
(H
+
)>
c
(OH
-
)
绛旀
A