绮惧搧
K12
鏁欒偛鏁欏璧勬枡
绮惧搧
K12
鏁欒偛鏁欏璧勬枡
涓撻
07
姘寸殑鐢电鏇茬嚎
1
锛庡悜
10mL
1
mol路L
锛?/p>
1
鐨?/p>
HCOOH
婧舵恫涓笉鏂淮鍔?/p>
1
mol路L
锛?/p>
1
鐨?/p>
NaOH
婧舵恫锛屽苟涓�鐩翠繚鎸佸父娓╋紝
鎵�鍔犵⒈鐨勪綋绉笌
-lg c
姘?/p>
(H
+
)
鐨勫叧绯诲鍥炬墍绀恒�?/p>
c
姘?/p>
(H
+
)
涓烘憾娑蹭腑姘寸數绂荤殑
c(H
+
)
銆備笅鍒楄娉曚笉
姝ｇ‘鐨勬槸
A.
甯告俯涓嬶紝
K
a
(HCOOH)
鐨勬暟閲忕骇涓?/p>
10
-4
B. a
銆?/p>
b
涓ょ偣
pH
鍧囦负
7
C.
浠?/p>
a
鐐瑰埌
b
鐐癸紝姘寸殑鐢电绋嬪害鍏堝澶у悗鍑忓皬
D.
娣峰悎婧舵恫鐨勫鐢垫�ч�愭笎澧炲己
銆愮瓟妗堛�?/p>
B
2
锛?/p>
甯告俯涓?/p>
,
鍚?/p>
10mL0.2mol/LH
2
C
2
O
4
婧舵恫涓淮鍔?/p>
0.2mol/LKOH
婧舵恫锛?/p>
姘寸數绂诲嚭姘㈢瀛愭祿搴?/p>
c(H
+
)