2020
灞婇珮涓夊寲瀛︿簩杞涔?/p>
宸ヤ笟娴佺▼涓撻璁粌
1
銆佺⒈鎬ч攲閿扮數姹犳槸鏃ュ父鐢熸椿涓秷鑰楅噺鏈�澶х殑鐢垫睜锛屽叾鏋勯�犲鍥炬墍绀恒�?/p>
鏀剧數鏃舵�诲弽搴斾负
Zn
锛?/p>
2H
2
O
锛?/p>
2MnO
2
===Zn(OH)
2
锛?/p>
2MnOOH
銆備粠搴熸棫纰辨�ч攲閿扮數姹犱腑鍥炴敹
Zn
鍜?/p>
MnO
2
鐨勫伐鑹哄鍥炬墍绀猴細
鍥炵瓟涓嬪垪闂锛?/p>
(1)MnOOH
涓紝
Mn
鍏冪礌鐨勫寲鍚堜环涓?/p>
________
銆?/p>
(2)
鈥滆繕鍘熺剻鐑р�濊繃绋嬩腑锛岄珮浠烽噾灞炲寲鍚堢墿琚繕鍘熶负浣庝环姘у寲鐗╂垨閲戝睘鍗曡川
(
鍏朵腑
MnOOH
銆?/p>
MnO
2
琚繕鍘?/p>
鎴?/p>
MnO)
锛屼富瑕佸師鍥犳槸鈥滅矇鏂欌�濅腑鍚湁
________
銆?/p>
(3)
鈥滃噣鍖栤�濇槸涓轰簡闄ゅ幓娴稿嚭娑蹭腑鐨?/p>
Fe
2
锛?
锛屾柟娉曟槸锛氬姞鍏?/p>
________(
濉寲瀛﹀紡
)
婧舵恫灏?/p>
Fe
2
锛?
姘у寲涓?/p>
Fe
3
锛?
锛屽啀
璋冭妭
pH
浣?/p>
Fe
3
锛?
娌夋穩瀹屽叏銆傚凡鐭ユ蹈鍑烘恫涓?/p>
Mn
2
锛?
銆?/p>
Zn
2
锛?
鐨勬祿搴︾害涓?/p>
0.1 mol路
L
锛?
1
锛屾牴鎹笅鍒楁暟鎹绠楋紝璋冭妭
pH
鐨勫悎鐞嗚寖鍥存槸
________
鑷?/p>
________
銆?/p>
(
绂诲瓙娴撳害灏忎簬
1
脳
10
锛?
5
mol路
L
锛?/p>
1
鍗充负娌夋穩瀹屽叏
)
鍖栧悎鐗?/p>
Mn(OH)
2
Zn(OH)
2
Fe(OH)
3
K
sp
杩戜技鍊?/p>
10
锛?/p>
13
10
锛?/p>
17
10
锛?/p>
38
(4)
鈥滅數瑙ｂ�濇椂锛岄槼鏋佺殑鐢垫瀬鍙嶅簲寮忎负
_____________________________
銆?/p>
鏈伐鑹轰腑搴斿惊鐜埄鐢ㄧ殑鐗╄川鏄?/p>
________(
濉寲瀛﹀紡
)
銆?/p>
(5)
鑻ュ皢鈥滅矇鏂欌�濈洿鎺ヤ笌鐩愰吀鍏辩儹鍙嶅簲鍚庤繃婊わ紝
婊ゆ恫鐨勪富瑕佹垚鍒嗘槸
ZnCl
2
鍜?/p>
MnCl
2
銆?/p>
鈥滅矇鏂欌�濅腑鐨?/p>
MnOOH
涓庣洂閰稿弽搴旂殑鍖栧鏂圭▼寮忎负
____________________________________________________________
銆?/p>
(6)
鏌愮⒈鎬ч攲閿扮數姹犵淮鎸佺數娴佸己搴?/p>
0.5 A(
鐩稿綋浜庢瘡绉掗�氳繃
5
脳
10
锛?
6
mol
鐢靛瓙
)
锛?/p>
杩炴帴宸ヤ綔
80
鍒嗛挓鍗虫帴杩戝け鏁堛�?/p>
濡傛灉鍒堕�犱竴鑺傜數姹犳墍闇�鐨勯攲绮変负
6 g
锛屽垯鐢垫睜澶辨晥鏃朵粛鏈?/p>
________%
鐨勯噾灞為攲鏈弬鍔犲弽搴斻�?/p>
绛旀
(1)
锛?/p>
3
(2)C
(3)H
2
O
2
(
鎴?/p>
KMnO
4
)
3
6
(4)Mn
2
锛?
锛?/p>
2e
锛?
锛?/p>
2H
2
O===MnO
2
锛?/p>
4H
锛?
H
2
SO
4
(5)2MnOOH
锛?/p>
6HCl=====
鈻?
Cl
2
鈫戯紜
2MnCl
2
锛?/p>
4H
2
O
(6)87
(1)
锛?/p>
3
(2)C
(3)H
2
O
2
(
鎴?/p>
KMnO
4
)
3
6
(4)Mn
2
锛?
锛?/p>
2e
锛?
锛?/p>
2H
2
O===MnO
2
锛?/p>
4H
锛?
H
2
SO
4
(5)2MnOOH
锛?/p>
6HCl=====
鈻?
Cl
2
鈫戯紜
2MnCl
2
锛?/p>
4H
2
O
(6)87