绗崄涓夌珷鑳朵綋鍒嗘暎浣撶郴鍜屽ぇ鍒嗗瓙婧舵恫
杩斿洖涓婁竴椤?/p>
1.
鍦ㄧ⒈鎬ф憾娑蹭腑鐢?/p>
HCHO
杩樺師
HAuCl4
浠ュ埗澶囬噾婧惰兌
,
鍙嶅簲鍙〃绀轰负
HAuCl4 +5NaOH ---> NaAuO2+4NaCl+3H2O
2NaAuO2 +3HCHO +NaOH ---> 2Au+3HCOONa+2H2O
姝ゅ
NaAuO2
鏄ǔ瀹氬墏
,
璇曞啓鍑鸿兌鍥㈢粨鏋勫紡
.
2.
鍦ㄤ笁涓儳鐡朵腑鍒嗗埆鐩?/p>
0.02
dm3
鐨?/p>
Fe(OH3
婧惰兌鍒嗗埆鍔犲叆
NaCl,Na2SO4
鍜?/p>
Na3PO4
婧舵恫浣垮叾鑱氭矇
,
鑷冲皯闇�鍔犵數瑙ｈ川鐨勬暟閲忎负
(11 mol路dm
-3
鐨?/p>
NaCl 0.021 dm3,
(2 0.005 mol路dm
-3
鐨?/p>
Na2SO4 0.125 dm3,
(3 0.0033 mol路dm
-3
鐨?/p>
Na3PO4 0.0074 dm3,
璇曡绠楀悇鐢佃В璐ㄧ殑鑱氭矇鍊煎拰瀹冧滑鐨勮仛娌夎兘鍔涗箣姣?/p>
,
浠庤�屽彲鍒ゆ柇鑳剁矑甯︿粈涔堢數鑽?/p>
.
3.
璁炬湁涓�鑱氬悎鐗╂牱鍝?/p>
,
鍏朵腑鎽╁皵璐ㄩ噺涓?/p>
10.0
kg/mol
鐨勫垎瀛愭湁
10
mol,
鎽╁皵璐ㄩ噺涓?