浠诲姟
姘㈡哀鍖栭挔鏍囧噯婧舵恫鐨勬爣瀹?/p>
涓�銆佺洰鐨?/p>
1
锛庢帉鎻＄敤閭昏嫰浜岀敳閰告阿閽炬爣瀹氭阿姘у寲閽犳憾娑茬殑鍘熺悊鍜屾柟娉曘�?/p>
2
锛庣啛缁冨噺閲忔硶绉板彇鍩哄噯鐗╄川鐨勬柟娉曘�?/p>
3
锛庣啛缁冩淮瀹氭搷浣滃拰鐢ㄩ厷閰炴寚绀哄墏鍒ゆ柇婊村畾缁堢偣銆?/p>
浜屻�佸師鐞?/p>
鍥轰綋姘㈡哀鍖栭挔鍏锋湁寰堝己鐨勫惛婀挎�э紝
涓旀槗鍚告敹绌烘皵涓殑姘村垎鍜屼簩姘у寲纰筹紝
鍥犺�?/p>
甯稿惈鏈?/p>
Na
2
CO
3
锛屼笖鍚皯閲忕殑纭呴吀鐩愩�佺～閰哥洂鍜屾隘鍖栫墿锛屽洜姝や笉鑳界洿鎺ラ厤鍒舵垚鍑?/p>
纭祿搴︾殑婧舵恫锛?/p>
鑰屽彧鑳介厤鍒舵垚杩戜技娴撳害鐨勬憾娑诧紝
鐒跺悗鐢ㄥ熀鍑嗙墿璐ㄨ繘琛屾爣瀹氾紝
浠ヨ幏
寰楀噯纭祿搴︺�?/p>
鐢变簬姘㈡哀鍖栭挔婧舵恫涓⒊閰搁挔鐨勫瓨鍦紝
浼氬奖鍝嶉吀纰辨淮瀹氱殑鍑嗙‘搴︼紝
鍦ㄧ簿纭殑娴?/p>
瀹氫腑搴旈厤鍒朵笉鍚?/p>
Na
2
CO
3
鐨?/p>
NaOH
婧舵恫骞跺Ε鍠勪繚瀛樸�?/p>
鐢ㄩ偦鑻簩鐢查吀姘㈤捑鏍囧畾姘㈡哀鍖栭挔婧舵恫鐨勫弽搴斿紡涓猴細
鐢卞弽搴斿彲鐭ワ紝
1mol(KHC
8
H
4
O
4
)
涓?/p>
1mol(NaOH)
瀹屽叏鍙嶅簲銆傚埌鍖栧璁￠噺鐐规椂锛?/p>
婧舵恫鍛堢⒈鎬э紝
pH
鍊肩害涓?/p>
9
锛屽彲閫夌敤閰氶厼浣滄寚绀哄墏锛屾淮瀹氳嚦婧舵恫鐢辨棤鑹插彉涓烘祬绮?/p>
鑹诧紝
30s
涓嶈お鍗充负婊村畾缁堢偣銆?/p>
涓夈�佽瘯鍓?/p>
1
锛庢阿姘у寲閽犲浐浣擄紱
2
锛庨厷閰炴寚绀哄墏
10g/L
涔欓唶婧舵恫锛?/p>
3
锛庨偦绗ㄤ簩鐢查吀姘㈤捑鍩哄噯鐗┿�?/p>
鍥涖�佹搷浣滄楠?/p>
c(NaOH)=0.1mol/LNaOH
婧舵恫鐨勬爣瀹?/p>
鍦ㄥ垎鏋愬ぉ骞充笂鍑嗙‘绉板彇涓変唤宸插湪
105~110
0
C
鐑樿繃浜屽皬鏃剁殑鍩哄噯鐗╄川閭昏嫰浜岀敳閰?/p>
姘㈤捑
0.4~0.6g
锛堝浣曡绠楋級
浜?/p>
250mL
閿ュ舰鐡朵腑锛?/p>
鍚勫姞
25mL
鐓哺鍚庡垰鍒氬喎鍗寸殑姘?/p>
浣夸箣婧惰В锛堝娌℃湁瀹屽叏婧惰В锛屽彲绋嶅井鍔犵儹锛?/p>
銆傚喎鍗村悗婊村姞
2
婊撮厷閰炴寚绀哄墏锛岀敤娆?/p>
鏍囧畾鐨勬阿姘у寲閽犳憾娑叉淮瀹氳嚦婧舵恫鐢辨棤鑹插彉涓哄井绾㈣壊
30s
涓嶆秷澶卞嵆涓虹粓鐐广�?/p>
璁颁笅姘?/p>
姘у寲閽犳憾娑叉秷鑰楃殑浣撶Н銆傝姹備笁浠芥爣瀹氱殑鐩稿骞冲潎鍋忓樊搴斿皬浜?/p>
0.2%
銆?/p>
浜斻�佽绠楀叕寮?/p>
m
KHC8H4O4
c(NaOH) =
__________________________________________________
V
NaOH
M
锛?/p>
KHC
8
H
4
O
4
锛?/p>
寮忎腑
c(NaOH)
_______
NaOH
鏍囧噯婧舵恫鐨勬祿搴︼紝
mol/L
锛?/p>
m (KHC
8
H
4
O
4
)
_______
閭昏嫰浜岀敳閰告阿閽剧殑璐ㄩ噺
, g
锛?/p>
M(KHC
8
H
4
O
4
)
________
閭昏嫰浜岀敳閰告阿閽剧殑鎽╁皵璐ㄩ噺锛?/p>
g/mol
锛?/p>
V
锛?/p>
NaOH
锛?/p>
________
婊村畾鏃舵秷鑰?/p>
NaOH
鏍囧噯婧舵恫鐨勪綋绉紝
L
锛?/p>