鍙屾寚绀哄墏娉曟祴瀹氭贩鍚堢⒈
涓�锛庡疄楠岀洰鐨?/p>
1
銆佽繘涓�姝ョ啛缁冩淮瀹氭搷浣滃拰婊村畾缁堢偣鐨勫垽鏂紱
2
銆佸浼氭爣瀹氶吀鏍囧噯婧舵恫鐨勬祿搴︼紱
3
銆佹帉鎻℃贩鍚堢⒈鍒嗘瀽鐨勬祴瀹氬師鐞嗐�佹柟娉曞拰璁＄畻銆?/p>
浜岋紟瀹為獙鍘熺悊
娣峰悎纰辨槸
Na
2
CO
3
涓?/p>
NaOH
鎴?/p>
Na
2
CO
3
涓?/p>
NaHCO
3
鐨勬贩鍚堢墿锛?/p>
鍙噰鐢ㄥ弻鎸囩ず鍓傛硶杩涜鍒嗘瀽锛?/p>
娴嬪畾鍚勭粍
鍒嗙殑鍚噺銆傚湪娣峰悎纰辩殑璇曟恫涓姞鍏ラ厷閰炴寚绀哄墏锛岀敤
HCl
鏍囧噯婧舵恫婊村畾鑷虫憾娑插憟寰孩鑹层�傛鏃?/p>
璇曟恫涓墍鍚?/p>
NaOH
瀹屽叏琚腑鍜岋紝
Na
2
CO
3
涔熻婊村畾鎴?/p>
NaHCO
3
锛屽弽搴斿涓嬶細
NaOH + HCl = NaCl + H
2
O Na
2
CO
3
+ HCl = NaCl + NaHCO
3
璁炬淮瀹氫綋绉负
V
1
ml
銆傚啀鍔犲叆鐢插熀姗欐寚绀哄墏锛岀户缁敤
HCl
鏍囧噯婧舵恫婊村畾鑷虫憾娑茬敱榛勮壊鍙樹负
姗欒壊鍗充负缁堢偣銆傛鏃?/p>
NaHCO
3
琚腑鍜屾垚
H
2
CO
3
锛屽弽搴斾负锛?/p>
NaHCO
3
+ HCl = NaCl + H
2
O + CO
2
鈫?/p>
璁炬鏃舵秷鑰?/p>
HCl
鏍囧噯婧舵恫鐨勪綋绉负
V
2
ml
銆傛牴鎹?/p>
V
1
鍜?/p>
V
2
鍙互鍒ゆ柇鍑烘贩鍚堢⒈鐨勭粍鎴愩�?/p>
璁捐瘯娑茬殑浣撶Н
涓?/p>
Vml
銆?/p>
褰?/p>
V
1
>V
2
鏃讹紝璇曟恫涓?/p>
NaOH
鍜?/p>
Na
2
CO
3
鐨勬贩鍚堢墿锛?/p>
NaOH
鍜?/p>
Na
2
CO
3
鐨勫惈閲?/p>
.
鍙敱涓嬪紡璁＄畻锛?
%
100
1000
)
(
%
2
1
m
M
V
V
C
NaOH
NaOH
飥?/p>
飥?
锛?/p>
%
100
1000
2
1
2
%
3
2
2
3
2
m
M
V
C
CO
Na
CO
Na
飩?
飩?/p>
飥?
褰?/p>
V
1
<V
2
鏃讹紝璇曟恫涓?/p>
Na
2
CO
3
鍜?/p>
NaHCO
3
鐨勬贩鍚堢墿锛?/p>
NaOH
鍜?/p>
Na
2
CO
3
鐨勫惈閲忋�傚彲鐢变笅寮忚绠楋細
%
100
1000
2
1
2
%
3
2
1
3
2
m
M
V
C
CO
Na
CO
Na
飩?
飩?/p>
飥?
锛?/p>
m
M
V
V
C
NaHCO
NaHCO
%
100
1000
)
(
%
3
1
2
3
飥?/p>
飥?
涓夛紟
璇曞墏鍙婁华鍣?/p>
锛堣瘯鍓傦級锛?/p>
a.0.1 mol/L HCl
鏍囧噯婧舵恫锛?/p>
b.
鐢插熀姗欙紙
1g/L
姘存憾娑诧級锛?/p>
c.
閰氶厼锛?/p>
2g/L
涔?/p>
閱囨憾娑诧級锛?/p>
d.
娣峰悎纰辨牱鍝?/p>
锛堜华鍣級
锛?/p>
鐢靛瓙澶╁钩锛?/p>
25.00mL
閰稿紡婊村畾绠★紝
25.00mL
瀹归噺鐡讹紝
25.00mL
绉绘恫绠★紝
250.00mL
閿ュ舰鐡?/p>
锛?/p>
500
mL
鐑ф澂锛涘父鐢ㄦ淮瀹氫华鍣ㄣ�?/p>
鍥涳紟
瀹為獙姝ラ
1
銆佺洂閰告憾娑叉祿搴︾殑閰嶅埗鍙婃爣瀹?/p>
a.
閰嶅埗
.
閲忓彇
4.5ml HCl(12
mol/L)
,
鍊掑叆
500ml
鐑ф澂涓紝鍔犲叆
300ml
钂搁姘存憞鍖�鍐嶇█
閲婅嚦
500ml,
璐翠笂鏍囩寰呮爣瀹氥�?/p>