楂樹腑鍖栧姣忔棩涓�棰橈紙
400
閬擄級
鈽呪�?/p>
020829-1
銆佸綍鍍忕敤鐨勯珮鎬ц兘纾佺矇锛屼富瑕佹潗鏂欎箣涓�鏄敱涓夌鍏冪礌缁勬垚鐨勫寲瀛﹀紡涓?/p>
Co
x
Fe
(3-x)
O
(3+x)
鐨勫寲鍚堢墿銆傚凡鐭ユ哀涓?/p>
-2
浠凤紝閽?/p>
(Co)
鍜岄搧鍙兘鍛堢幇
+2
浠锋垨
+3
浠凤紝涓斾笂杩板寲
鍚堢墿涓紝姣忕鍏冪礌鍙湁涓�绉嶅寲鍚堜环銆傚垯
x
鍊间负
______
锛岄搧鐨勫寲鍚堜环
______
锛岄挻鐨勫寲鍚?/p>
浠?/p>
________
銆?/p>
020829-1
绛旀锛?/p>
鍋囪
Co
涓?/p>
+3
浠凤紝鍒欓搧涓?/p>
+2
浠枫�傚垯鏈?/p>
3x+2(3-x)-2(3+x)=0
锛堝寲鍚堜环浠ｆ暟鍜屼负闆讹級
,
瑙?/p>
x=0
锛堟棤
Co
锛?/p>
,
涓嶅悎鐞嗐�?/p>
锛堟嵁姝ゅ嵆鍙垽鏂簲璇ユ槸
Co
涓?/p>
+2
浠凤紝閾佷负
+3
浠凤紝
2x+3(3-x)-2(3+x)=0
锛岃В寰?/p>
x=1
锛?/p>
锛涘綋鐒讹紝濡傛灉寮�濮嬪亣璁?/p>
Co
涓?/p>
+2
浠凤紝鍒欓搧涓?/p>
+3
浠凤紝
鍒欏彲鐩存帴寰楀嚭缁撴灉銆?/p>
鈽呪�?/p>
020830
锛?/p>
1
銆?/p>
鎸変笅鍒楀弽搴旂殑鍖栧鏂圭▼寮忥紝
鍦ㄦ按婧舵恫涓?/p>
N
2
H
5
+
绂诲瓙灏?/p>
Fe
3+
杩樺師涓?/p>
Fe
2+
锛?/p>
N
2
H
5
+
锛?/p>
4Fe
3+
鈫?/p>
4Fe
2+
+Y+鈥︿綔涓?/p>
N
2
H
5
+
绂诲瓙鐨勬哀鍖栦骇鐗?/p>
Y
鍙兘鏄?/p>
_______
锛?/p>
020830
锛?/p>
1
瑙ｇ瓟锛?/p>
4
涓?/p>
Fe
3+
鑾峰緱
4
涓數瀛愶紝
鍦?/p>
N
2
H
5
+
涓?/p>
2
涓?/p>
N
鍘熷瓙鏄?/p>
-2
浠凤紝
鍏卞簲澶卞幓
4
涓數瀛愯�屽彉涓?/p>
0
浠凤紝
鍗冲緱
N
2
.
鈽呪�?/p>
020831-1
銆佺敤瓒抽噺鐨勭█
H2SO4
婧惰В
FeS
鍜?/p>
Fe(OH)3
鐨勬贩鍚堢墿
28.3g
锛屽彲寰楀埌
1.6g
纭紝鍘熸贩鍚堢墿涓?/p>
FeS
鐨勮川閲忓彲鑳芥槸澶氬皯鍏?/p>
020831
锛?/p>
1
瑙ｇ瓟锛?/p>
鍒楀嚭鍙嶅簲鐨勫寲瀛︽柟绋嬪紡锛?/p>
FeS+H
+
=Fe
2+
+H
2
S
Fe(OH)
3
+3H
+
=Fe
3+
+3H
2
O
2Fe
3+
+H
2
S=2Fe
2+
+2H
+
+S鈫撶敱鏂圭▼寮忓彲绠楀嚭锛岃鐢熸垚
1.6g
纭紝椤绘湁
m(FeS)
锛?/p>
4.4g
锛?/p>
m[Fe(OH)
3
]
锛?/p>
10.7g
锛屽洜
4.4+10.7=15.1(g)
锛?/p>
28.3(g)
锛岃鏄庢贩鍚堢墿杩囬噺銆傛墍浠ワ細鈶犲綋
FeS
瀹屽叏鍙嶅簲鏃讹紝鏈?/p>
FeS4.4g
锛?/p>
鈶?/p>
褰?/p>
Fe(OH)
3
瀹?/p>
鍏?/p>
鍙?/p>
搴?/p>
鏃?/p>
锛?/p>
鏈?/p>
Fe(OH)
3
10.7g,
鍒?/p>
娣?/p>
鍚?/p>
鐗?/p>
涓?/p>
FeS
鐨?/p>
璐?/p>
閲?/p>
涓?/p>
28.3-10.7=17.6(g).
鈽呪�?/p>
020901
锛?/p>
1
銆佹煇婧舵恫涓惈鏈夎緝澶氱殑
Na
2
SO
4
鍜屽皯閲忕殑
Fe
2
(SO
4
)
3
銆傝嫢鐢ㄨ婧舵恫鍒跺彇鑺掔
锛?/p>
Na
2
SO
4
路
10H
2
O
锛?/p>
锛屽彲渚涢�夋嫨鐨勬搷浣滄湁锛?/p>
鈶犲姞閫傞噺
H
2
SO
4
婧舵恫锛涒憽鍔犻噾灞為挔锛涒憿缁撴櫠锛涒懀鍔犺繃閲?/p>
NaOH
锛涒懁鍔犲己鐑劚缁撴櫠姘达紱鈶?/p>
杩囨护銆傛纭殑鎿嶄綔姝ラ鏄?/p>
A.鈶♀懃鈶?/p>
B.鈶ｂ懃鈶犫憿
C.鈶ｂ懃鈶⑩懁
D.鈶♀懃鈶犫憿鈶?/p>
020901
锛?/p>
1
绛旀锛?/p>
B.
瑙ｆ瀽锛氭湰棰樼粨鍚堝疄楠屾搷浣滆�冩煡瀵规棤鏈哄寲鍚堢墿绮惧埗鏂规硶鐨勪簡瑙ｏ紝棰樼洰璁剧疆浜?/p>
6
涓彲渚涢�?/p>
鎷╃殑姝ラ锛屾剰鍦ㄥ鍔犲鑰冪敓鎬濈淮杩囩▼鐨勫共鎵般�?/p>
绮惧埗杩囩▼涓紝缁濅笉鍙兘鐢ㄥ埌閲戝睘閽犮�傚洜涓洪噾灞為挔涓庢憾娑蹭腑鐨勬按鍙?/p>
Fe
3+
鍙嶅簲浼氫骇鐢熷壇浜?/p>
鐗╋紝
鑷翠娇鑺掔涓嶇函銆?/p>
鑺掔鐨勫寲瀛﹀紡涓?/p>
Na
2
SO
4
路
10H
2
O
锛?/p>
鍔犲己鐑劚鍘荤粨鏅舵按锛?/p>
鐢熸垚鐨?/p>
Na
2
SO
4
涓嶆槸鑺掔锛?/p>
涓庤姹備笉鍚堛�?/p>
鐢辨鍙鍑℃秹鍙婃湁鈶″拰鈶や袱涓搷浣滄楠ょ殑閫夐」閮芥槸涓嶆纭殑锛?/p>
杩欐牱鍙帓闄?/p>
A
銆?/p>
C
銆?/p>
D
锛屽彧鏈?/p>
B
閫夐」鏄纭殑銆?/p>
鈽呪�?/p>
020902
锛?/p>
1
銆佸凡鐭?/p>
NaBiO
3
鏄粍鑹层�佸井婧朵簬姘寸殑鍥轰綋锛?/p>
Bi
3+
涓烘棤鑹层�傚皢
NaBiO
3
鍥轰綋鍔犲叆
鍒?/p>
MnSO
4
鍜?/p>
H
2
SO
4
鐨勬贩鍚堟憾娑蹭腑锛屽姞鐑紝寰楃传鑹茬殑娣峰悎婧舵恫銆傝瘯鍐欏嚭璇ュ弽搴旂殑绂诲瓙鏂圭▼
寮忋�?/p>
020902
锛?/p>
1
瑙ｇ瓟锛?/p>