2019
楂樿�冨寲瀛︿竴杞熀纭�棰樼郴鍒楋紙
8
锛?/p>
鏉庝粫鎵?/p>
1
銆?/p>
锛?/p>
2018
灞婃祹瀹佸競楂樹笁绗簩娆℃ā鎷熻�冭瘯鐞嗙缁煎悎锛夎
N
A
涓洪樋浼忓姞寰风綏甯告暟鐨勫�硷紝涓嬪垪璇存硶
姝ｇ‘鏄?/p>
A.
鐢佃В鐔旇瀺姘у寲閾濓紝褰撻槼鏋佺敓鎴?/p>
67.2L
姘斾綋鏃讹紝闃存瀬浜х敓
4N
A
涓?/p>
Al
B.
灏?/p>
1mol Cl
2
閫氬叆鍒版按涓紝鍒欐湁
N(HClO)+N(Cl
-
)+ N(ClO
-
)=2 N
A
C. 4.2 g
涔欑儻鍜屼笝鐑贩鍚堟皵浣撲腑鍚湁鐨勬瀬鎬ч敭鏁扮洰涓?/p>
0.6 N
A
D. 25
鈩冿紝
pH=7
鐨?/p>
NH
4
Cl
鍜?/p>
NH
3
路H
2
O
鐨勬贩鍚堟憾娑蹭腑锛屽惈
OH
-
鐨勬暟鐩负
10
-7
N
A
銆愮瓟妗堛�?/p>
C
銆愯В鏋愩�?/p>
A.
娌℃寚鏄庡湪鏍囧噯鐘跺喌涓嬶紝鏃犳硶璁＄畻
67.2L
姘斾綋鐨勭墿璐ㄧ殑閲忥紝鏁?/p>
A
閿欙紱
B. 1mol Cl
2
鍚湁
2molCl
鍘熷瓙锛岃�屾隘姘斾笌姘村弽搴斾负鍙�嗗弽搴旓紝鍙嶅簲涓嶈兘杩涜鍒板簳锛屾晠婧舵恫涓惈鏈?/p>
HClO
銆?/p>
Cl
-
銆?/p>
ClO
-
銆?/p>
Cl
2
锛屾牴鎹隘鍘熷瓙瀹堟亽鍙湁锛?/p>
N(HClO)+N(Cl
-
)+
N(ClO
-
)+2
N(Cl
2
)=2
N
A
锛屾晠
B
閿欒锛?/p>
C.
涔欑儻鍜屼笝鐑渶绠�寮忓潎涓?/p>
CH
2
,
4.2
g
涔欑儻鍜屼笝鐑贩鍚堟皵浣撲腑鍚湁
0.3mol
CH
2
,
姣忎釜
CH
2
涓惈
鏈変袱涓瀬鎬ч敭锛屾晠
0.3mol CH
2
涓惈鏈?/p>
0.6 N
A
涓瀬鎬ч敭锛?/p>
C
姝ｇ‘锛?/p>
D.
婧舵恫浣撶Н鏈煡锛屼笉鑳借
绠?/p>
OH
-
鐨勭墿璐ㄧ殑閲忥紝鍥犳锛?/p>
D
閿欒锛涚患鍚堜互涓婂垎鏋愶紝鏈绛旀涓猴細
C
銆?/p>
2
銆?/p>
锛?/p>
2018
灞婂北瑗跨渷澶師甯傞珮涓変笂瀛︽湡鏈熸湯鑰冭瘯锛夌敤
N
A
琛ㄧず闃夸紡鍔犲痉缃楀父鏁扮殑鍊?/p>
,
涓嬪垪璇存硶
姝ｇ‘鐨勬槸
A. 1 mol
缇熷熀涓惈鏈?/p>
10 N
A
涓數瀛?/p>
B. 1 L 0.1 mol/L
鐨勮憽钀勭硸婧舵恫涓惈鏈夌殑鍒嗗瓙鏁颁负
N
A
C.
鏍囧噯鐘跺喌涓嬶紝
2.24 L Cl
2
婧朵簬姘翠腑杈惧埌楗卞拰锛?/p>
鍙緱鍒?/p>
HClO
鍒嗗瓙鐨勬暟鐩槸
0.1N
A
D.
鐢?/p>
0.1 mol CH
3
COONa
鍜屽皯閲忛唻閰稿舰鎴愮殑涓�ф憾娑蹭腑锛?/p>
CH
3
COO
锛?
鏁扮洰绛変簬
0.1N
A
銆愮瓟妗堛�?/p>
D
銆愯В鏋愩�?/p>
A
銆佺緹鍩猴紙鈥?/p>
OH
锛変腑鍚湁
9
涓數瀛愶紝鍒?/p>
1 mol
缇熷熀涓惈鏈?/p>
9 N
A
涓數瀛愶紝鍗?/p>
A
閿欒锛?/p>
B
銆佽憽钀勭硸鏄潪鐢佃В璐紝鎵�浠?/p>
1 L 0.1 mol/L
鐨勮憽钀勭硸婧舵恫涓惈鏈夌殑鍒嗗瓙鏁颁负
0.1N
A
锛屾晠
A
閿欒锛?/p>
C
銆?/p>
婧朵簬姘寸殑
Cl
2
鍙湁涓�灏忛儴鍒嗕笌姘村弽搴旂敓鎴?/p>
HCl
鍜?/p>
HClO
锛?/p>
鎵�浠ユ爣鍐典笅
0.1molCl
2
婧朵簬
姘翠腑杈惧埌楗卞拰锛?/p>
寰楀埌
HClO
鐨勫垎瀛愭暟鐩皬浜?/p>
0.1N
A
锛?/p>
鍗?/p>
C
閿欒锛?/p>
D
銆?/p>
鍦ㄤ腑鎬ф憾娑蹭腑
n(H
+
)=
n(OH
-
)
锛?
鏍规嵁鐢佃嵎瀹堟亽寰?/p>
n(Na
+
)=n(CH
3
COO
锛?/p>
)=0.1mol
锛屽垯
CH
3
COO
锛?
鏁扮洰涓?/p>
0.1N
A
锛屾墍浠?/p>
D
姝ｇ‘銆傛湰棰樻
纭瓟妗堜负
D
銆?/p>
3
銆?/p>
锛?/p>
2018
灞婇檿瑗跨渷姒嗘灄甯傞珮涓夌浜屾妯℃嫙鑰冭瘯锛夋祴瀹氱～閾佺熆
(
涓昏鎴愬垎涓?/p>
FeS
2
)
涓～鍜岄搧鍚?/p>
閲忕殑瀹為獙姝ラ濡備笅
:
銆愮～鍚噺鐨勬祴瀹氥�?/p>
鈶犲噯纭О鍙?/p>
0.5g
纭搧鐭跨矇浜庡潻鍩氫腑锛屽姞鍏?/p>
4.5gNa
2
O
2
锛岀敤鐜荤拑妫掑厖鍒嗘悈鎷岋紝涓婇潰鍐嶇洊涓�灞?/p>
Na
2
CO
3
锛屽湪
700
鈩冧笅鐒欑儳
15min
銆?/p>
鈶″皢鍧╁煔鍙婂叾鐩栨斁鍏?/p>
100 mL
娌告按涓紝娴告场
10 min
骞舵礂鍑�鍧╁煔銆傚皢鎵�寰楁憾娑茶浆绉昏嚦鐑ф澂涓�?/p>