1
鍒嗘瀽鍖栧缁冧範棰?/p>
绗?/p>
6
绔?/p>
缁滃悎婊村畾娉?/p>
涓�
.
閫夋嫨棰?/p>
1
.
涓嬪垪鏈夊叧鏉′欢绋冲畾甯告暟鐨勬纭彊杩版槸
锛?/p>
锛?/p>
A
.
鏉′欢绋冲畾甯告暟鍙笌閰告晥搴旀湁鍏?/p>
B
.
鏉′欢绋冲畾甯告暟琛ㄧず鐨勬槸婧舵恫涓粶鍚堢墿瀹為檯鐨勭ǔ瀹氬父鏁?/p>
C
.
鏉′欢绋冲畾甯告暟涓庢俯搴︽棤鍏?/p>
D
.
鏉′欢绋冲畾甯告暟涓庣粶鍚堢墿鐨勭ǔ瀹氭�ф棤鍏?/p>
2
.
瀵归厤浣嶅弽搴斾腑鐨勬潯浠剁ǔ瀹氬父鏁帮紝姝ｇ‘鐨勫彊杩版槸
锛?/p>
锛?/p>
A
.
鏉′欢绋冲畾甯告暟鏄悊鎯崇姸鎬佷笅鐨勭ǔ瀹氬父鏁?/p>
B
.
閰告晥搴旂郴鏁版�绘槸灏忎簬閰嶄綅鏁堝簲绯绘暟
C
.
鎵�鏈夌殑鍓弽搴斿潎浣挎潯浠剁ǔ瀹氬父鏁板噺灏?/p>
D
.
鏉′欢绋冲畾甯告暟鑳芥洿鍑嗙‘鍦版弿杩伴厤浣嶅寲鍚堢墿鐨勭ǔ瀹氭�?/p>
3
.
宸茬煡
lgK
ZnY
=16.5
锛?/p>
鑻ョ敤
0.020mol路
L
-1
EDTA
婊村畾
0.020mol路
L
-1
Zn
2+
婧舵恫锛?/p>
瑕佹眰鈻?/p>
pM=
卤
0.2
锛?/p>
TE = 0.1%
锛?/p>
宸茬煡
pH = 4
锛?/p>
5
锛?/p>
6
锛?/p>
7
鏃讹紝瀵瑰簲
lg
伪
Y(H)
鍒嗗埆涓?/p>
8.44
锛?/p>
6.45
锛?/p>
4.65
锛?/p>
3.32
锛?/p>
婊村畾鏃剁殑鏈�楂樺厑璁搁吀搴︿负
锛?/p>
锛?/p>
A
.
pH
鈮?/p>
4
B
.
pH
鈮?/p>
5
C
.
pH
鈮?/p>
6
D
.
pH
鈮?/p>
7
4
.
鐜扮敤
Cmol路
L
-1
EDTA
婊村畾绛夋祿搴︾殑
Ca
2+
锛?/p>
Ca
2+
鏃犲壇鍙嶅簲銆?/p>
宸茬煡姝ゆ椂婊村畾鐨勭獊璺冭寖鍥?/p>
螖
pM
锛?/p>
鑻?/p>
EDTA
鍜?/p>
Ca
2+
鐨勬祿搴﹀鍔?/p>
10
鍊嶏紝鍒欐鏃舵淮瀹氱殑绐佽穬鑼冨洿涓?/p>
螖
pM'
锛?/p>
锛?/p>
A
.
螖
pM'=
螖
pM-2
B
.
螖
pM'=
螖
pM+1
C
.
螖
pM'=
螖
pM-1
D
.
螖
pM'=
螖
pM+2
5
.
浠?/p>
EDTA
婊村畾
Zn
2+
鏃讹紝鍔犲叆鐨勬皑鎬ф憾娑叉棤娉曡捣鍒扮殑浣滅敤鏄?/p>
锛?/p>
锛?/p>
A
.
鎺у埗婧舵恫閰稿害
B
.
闃叉
Zn
2+
姘磋В
C
.
闃叉鎸囩ず鍓傚兊鍖?/p>
D
.
淇濇寔
Zn
2+
鍙淮瀹氱姸鎬?/p>
6
.
涓嬪垪鏈夊叧閲戝睘绂诲瓙鎸囩ず鍓傜殑涓嶆纭弿杩版槸
锛?/p>
锛?/p>
A
.
鐞嗚鍙樿壊鐐逛笌婧舵恫鐨?/p>
pH
鍊兼湁鍏?/p>
B
.
娌℃湁纭畾鐨勫彉鑹茶寖鍥?/p>
C
.
涓庨噾灞炵瀛愬舰鎴愮殑缁滃悎鐗╃ǔ瀹氭�ц閫傚綋
D
.
鑳藉湪浠绘剰
pH
鍊兼椂浣跨敤
7
.
鍦ㄩ厤浣嶆淮瀹氫腑锛屽綋婧舵恫涓瓨鍦ㄥ共鎵版祴瀹氱殑鍏卞瓨绂诲瓙鏃讹紝涓�鑸紭鍏堜娇鐢?/p>
锛?/p>
锛?/p>
A
.
娌夋穩鎺╄斀娉?/p>
B
.
姘у寲杩樺師鎺╄斀娉?/p>
C
.
绂诲瓙浜ゆ崲娉曞垎绂?/p>
D
.
閰嶄綅鎺╄斀娉?/p>
8
.
鐢?/p>
EDTA
婊村畾
Bi
3+
鏃讹紝娑堥櫎
Fe
3+
骞叉壈瀹滈噰鐢?/p>
锛?/p>
锛?/p>
A
.
鍔?/p>
NaOH
B
.
鍔犳姉鍧忚閰?/p>
C
.
鍔犱笁涔欓唶鑳?/p>
D
.
鍔犳鞍鍖栭捑
9
.
鏌愭憾娑蹭腑鍚湁
Ca
2+
銆?/p>
Mg
2+
鍙婂皯閲?/p>
Al
3+
銆?/p>
Fe
3+
锛?/p>
娆蹭互閾粦
T
涓烘寚绀哄墏锛?/p>
鐢?/p>
EDTA
婊村畾
Ca
2+
銆?/p>
Mg
2+
鐨勫惈閲忥紝姝ｇ‘鐨勫仛娉曟槸
锛?/p>
锛?/p>
A
.
纰辨�ф潯浠朵笅鍔犲叆
KCN
鍜?/p>
NaF
锛屽啀娴嬪畾
B
.
閰告�ф潯浠朵笅鍔犲叆涓変箼閱囪兒锛屽啀璋冭嚦纰辨�ф祴瀹?/p>
C
.
閰告�ф潯浠朵笅鍔犲叆
KCN
鍜?/p>
NaF
锛屽啀璋冭嚦纰辨�ф祴瀹?/p>
D
.
鍔犲叆
NH
3
娌夋穩鎺╄斀
Al
3+
鍜?/p>
Fe
3+
锛屽啀娴嬪畾
10
.
閾粦
T
锛?/p>
EBT
锛?/p>
涓?/p>
Ca
2+
鐨勯厤鍚堢墿鐨勭ǔ瀹氬父鏁?/p>
K
Ca-EBT
=10
5.4
锛?/p>
宸茬煡
EBT
鐨勯�愮骇璐ㄥ瓙鍖栧父鏁?
K
1
H
=10
11.5
锛?/p>
K
2
H
=10
6.3
锛屽湪
pH=10.0
鏃讹紝
EBT
浣滀负婊村畾
Ca
2+
鐨勬寚绀哄墏锛屽湪棰滆壊杞彉鐐圭殑
pCa
鍊间负
锛?/p>
锛?/p>