瀹為獙鍏?/p>
:
娣峰悎纰卞垎鏋愶紙鍙屾寚绀哄墏娉曪級
涓�銆佸疄楠岀洰鐨?/p>
1
銆佷簡瑙ｅ鍏冨急纰辨淮瀹氳繃绋嬩腑婧舵恫
pH
鍊肩殑鍙樺寲鍙婃寚绀哄墏鐨勯�夋嫨锛?/p>
2
銆佹帉鎻″弻鎸囩ず鍓傛硶娴嬪畾娣峰悎纰变腑纰抽吀閽犲拰纰抽吀姘㈤挔浠ュ強鎬荤⒈閲忕殑鍘熺悊鍜屾柟娉曪紱
3
銆佽繘涓�姝ョ粌涔犳淮瀹氥�佺Щ娑层�佸畾瀹圭瓑鍩烘湰鎿嶄綔銆?/p>
浜屻�佸疄楠屽師鐞?/p>
娣峰悎纰辩郴鎸?/p>
NaOH
鍜?/p>
Na
2
CO
3
鎴?/p>
Na
2
CO
3
鍜?/p>
NaHCO
3
绛夌被浼肩殑娣峰悎鐗╋紝鍙噰鐢?/p>
鍙屾寚绀哄墏娉曡繘琛屽垎鏋愶紝骞舵祴瀹氬悇缁勫垎鐨勫惈閲忋�?/p>
鑻ユ贩鍚堢⒈鏄敱
NaOH
鍜?/p>
Na
2
CO
3
缁?/p>
鎴愶紝鍏堜互閰氶厼浣滄寚绀哄墏锛岀敤
HCl
鏍囧噯婧舵恫婊磋嚦婧舵恫鐣ュ甫绮夎壊锛岃繖鏃?/p>
NaOH
鍏ㄩ儴琚?/p>
婊村畾锛岃�?/p>
Na
2
CO
3
鍙婊村埌
NaHCO
3
锛屾鏃朵负绗竴缁堢偣锛岃涓嬬敤鍘?/p>
HCl
婧舵恫鐨勪綋绉?/p>
V1
銆?/p>
杩囩▼鐨勫弽搴斿涓嬶細
閰氶厼鍙樿壊锛?/p>
OH
锛?/p>
锛?/p>
H
锛?/p>
锛?/p>
H
2
O
锛?/p>
CO
3
2
锛?/p>
锛?/p>
H
锛?/p>
锛?/p>
HCO
3
锛?/p>
鐒跺悗鍔?/p>
鍏ョ敳鍩烘鎸囩ず鍓傦紝鐢?/p>
HCl
缁х画婊磋嚦婧舵恫鐢遍粍鑹插彉涓烘鑹诧紝姝ゆ椂
NaHCO
3
琚淮鑷?/p>
H
2
CO
3
锛?/p>
璁颁笅鐢ㄥ幓鐨?/p>
HCl
婧舵恫鐨勪綋绉负
V2
锛?/p>
姝ゆ椂涓虹浜岀粓鐐广�?/p>
鏄剧劧
V2
鏄淮瀹?/p>
NaHCO
3
鎵�娑堣�楃殑
HCl
婧舵恫浣撶Н锛岃�?/p>
Na
2
CO
3
琚淮鍒?/p>
NaHCO
3
鍜?/p>
NaHCO
3
琚淮瀹氬埌
H
2
CO
3
鎵�
娑堣�楃殑
HCl
浣撶Н鏄浉绛夌殑銆傜敳鍩烘鍙樿壊鏃讹細
HCO
3
锛?/p>
锛?/p>
H
锛?/p>
锛?/p>
H
2
CO
3
(CO
2
锛?/p>
H
2
O)
鐢卞弽
搴斿紡鍙煡锛?/p>
V
1
>V
2
锛?/p>
涓?/p>
Na
2
CO
3
娑堣�楁爣鍑嗘憾娑茬殑浣撶Н涓?/p>
2V
2
锛?/p>
NaOH
娑堣�楁爣鍑嗘憾娑茬殑
浣撶Н涓猴紙
V
1
鈥?/p>
V
2
锛?/p>
锛屾嵁姝ゅ彲姹傚緱娣峰悎纰变腑
NaOH
鍜?/p>
Na
2
CO
3
鐨勫惈閲忋�傝嫢娣峰悎纰辩郴
Na
2
CO
3
鍜?/p>
NaHCO
3
鐨勬贩鍚堢墿锛屼互涓婅堪鍚屾牱鏂规硶杩涜娴嬪畾锛屽垯
V
2
>V
1
锛屼笖
Na
2
CO
3
娑堣�楁爣鍑嗘憾娑茬殑浣撶Н涓?/p>
2 V
1
锛?/p>
NaHCO
3
娑堣�?/p>
HCl
鏍囧噯婧舵恫鐨勪綋绉负锛?/p>
V
2
鈥?/p>
V
1
锛?/p>
銆傜敱
浠ヤ笂璁ㄨ鍙煡锛岃嫢娣峰悎纰辩郴鐢辨湭鐭ヨ瘯鏍风粍鎴愶紝鍒欏彲鏍规嵁
V1
涓?/p>
V2
鐨勬暟鎹紝纭畾
娣峰悎纰辩殑缁勬垚锛屽苟璁＄畻鍑哄悇缁勫垎鐨勫惈閲忋�?/p>
涓夈�佸疄楠岀敤鍝?/p>
0.1000 mol路
L-1HCl
鏍囧噯婧舵恫锛?/p>
0.01%
閰氶厼鎸囩ず鍓傦紝
0.01%
婧寸敳閰氱豢
-
浜岀敳鍩洪粍鎸囩ず鍓傦紝
娣峰悎纰辫瘯鏍?/p>
鍥涖�佸疄楠屾楠?/p>
鍑嗙‘绉诲彇
0.15-0.20g
纰辩伆璇曟牱涓変唤锛屽垎鍒疆浜?/p>
200mL
閿ュ瀷鐡朵腑锛屽悇鍔?/p>
50ml
钂搁姘达紝鍔?/p>
2
婊撮厷閰炴寚绀哄墏锛岀敤
HCl
鏍囧噯婧舵恫婊磋嚦婧舵恫鐣ュ甫绮夎壊缁堢偣锛岃涓嬬敤鍘?/p>
HCl
婧舵恫鐨勪綋绉?/p>
V
1
锛?/p>
鍐嶅姞鍏?/p>
9
婊存捍鐢查厷缁?/p>
-
浜岀敳鍩烘鎸囩ず鍓傦紝
鐢?/p>
HCl
缁х画婊磋嚦婧舵恫