ÌâÄ¿ÄÚÈÝ

3£®²¿·ÖÈõËáµÄµçÀëƽºâ³£ÊýÈç±í£º
ÈõËáHCOOHHCNH2CO3
µçÀëƽºâ
³£Êý£¨25¡æ£©
Ki=1.77¡Á10-4Ki=4.9¡Á10-10Ki1=4.3¡Á10-7
Ki2=5.6¡Á10-11
ÏÂÁÐÑ¡ÏîÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®2CN-+H2O+CO2¨T2HCN+CO32-
B£®2HCOOH+CO32-¨T2HCOO-+H2O+CO2¡ü
C£®µÈŨ¶ÈµÄHCOONaºÍNaCNÈÜÒºµÄpHÇ°Õß´óÓÚºóÕß
D£®Öк͵ÈŨ¶ÈµÄHCOOHºÍHCNÏûºÄNaOHµÄÁ¿Ç°ÕßµÈÓÚºóÕß

·ÖÎö ÈõËáµÄµçÀëƽºâ³£ÊýÔ½´ó£¬ÆäËáÐÔԽǿ£¬µÈpHµÄÈõËáÈÜÒº£¬ËáÐÔԽǿµÄËáÆäÎïÖʵÄÁ¿Å¨¶ÈԽС£¬ÈõËá¸ùÀë×ÓË®½â³Ì¶ÈԽС£¬½áºÏÇ¿ËáÄܺÍÈõËáÑη´Ó¦ÖÆÈ¡ÈõËá·ÖÎö½â´ð£®

½â´ð ½â£º¸ù¾ÝµçÀëƽºâ³£ÊýÖª£¬ËáÐÔÇ¿Èõ˳ÐòΪ£ºHCOOH£¾H2CO3£¾HCN£¾HCO3-£¬
A£®ÇâÇèËáµÄËáÐÔ´óÓÚ̼ËáÇâ¸ùÀë×Ó¶øСÓÚ̼ËᣬËùÒÔ·¢ÉúCN-+H2O+CO2=HCN+HCO3-·´Ó¦£¬¹ÊA´íÎó£»
B£®¼×ËáµÄËáÐÔ´óÓÚ̼ËᣬËùÒÔ2HCOOH+CO32-=2HCOO-+H2O+CO2¡üÄÜ·¢Éú£¬¹ÊBÕýÈ·£»
C£®ËáÐÔÇ¿Èõ˳ÐòΪ£ºHCOOH£¾H2CO3£¾HCN£¬µÈŨ¶ÈµÄHCOONaºÍNaCNÈÜÒº£¬NaCNË®½â³Ì¶È´ó£¬ÆäpH´ó£¬¹ÊC´íÎó£»
D£®µÈŨ¶ÈµÄHCOOHºÍHCNÈÜÒº£¬ÈÜÒºµÄÌå»ýδ֪£¬ÎÞ·¨ÅжÏÏûºÄNaOHµÄÁ¿£®¹ÊÑ¡B£®

µãÆÀ ±¾Ì⿼²éÈõµç½âÖʵĵçÀ룬¸ù¾Ýƽºâ³£ÊýÈ·¶¨ËáÐÔÇ¿Èõ£¬´Ó¶øÈ·¶¨ËáÖ®¼äµÄת»¯£¬×¢ÒâÔ½ÈõԽˮ½â£¬ÄѶÈÖеȣ®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
15£®º£Ë®ÊǾ޴óµÄ×ÊÔ´±¦¿â£¬ÔÚº£Ë®µ­»¯¼°×ÛºÏÀûÓ÷½ÃæÌì½òÊÐλ¾ÓÈ«¹úÇ°ÁУ®´Óº£Ë®ÖÐÌáȡʳÑκÍäåµÄ¹ý³ÌÈçÏ£º
ÒÑÖª£º¢Ùº£Ë®ÖÐäåÔªËصÄŨ¶È0.067g/L£»
¢ÚBr2µÄ·ÐµãΪ59¡æ£¬Î¢ÈÜÓÚË®£¬Óж¾ÐÔºÍÇ¿¸¯Ê´ÐÔ£®

£¨1£©Çëд³öÒ»ÖÖº£Ë®µ­»¯µÄ·½·¨£ºÕôÁ󷨣¨»òµçÉøÎö·¨¡¢Àë×Ó½»»»·¨£©£®
£¨2£©²½Öè¢ñÖÐÒÑ»ñµÃBr2£¬²½Öè¢òÖÐÓÖ½«Br2»¹Ô­ÎªBr-£¬ÆäÄ¿µÄΪ¸»¼¯äåÔªËØ£®
£¨3£©²½Öè¢òÓÃSO2Ë®ÈÜÒºÎüÊÕBr2£¬ÎüÊÕÂÊ¿É´ï95%£¬Óйط´Ó¦µÄÀë×Ó·½³ÌʽΪSO2+Br2+2H2O=4H++SO42-+2Br-£®
£¨4£©Ä³»¯Ñ§Ñо¿ÐÔѧϰС×éΪÁË´Ó¹¤ÒµäåÖÐÌá´¿äåµÄ·½·¨£¬»æÖÆÁËÈçÏÂ×°Öüòͼ£º

ÇëÄã²ÎÓë·ÖÎöÌÖÂÛ£º
¢ÙͼÖÐÒÇÆ÷BµÄÃû³Æ£ºÀäÄý¹Ü£®
¢ÚÕûÌ×ʵÑé×°ÖÃÖÐÒÇÆ÷Á¬½Ó¾ù²»ÄÜÓÃÏð½ºÈûºÍÏ𽺹ܣ¬ÆäÔ­ÒòΪBr2¸¯Ê´Ï𽺣®
¢ÛʵÑéÖÐÒª´ïµ½Ìá´¿äåµÄÄ¿µÄ£¬²Ù×÷µÄ¹Ø¼üÊÇ¿ØÖÆζȼÆbµÄζȣ¬²¢ÊÕ¼¯·ÐµãΪ59¡æʱµÄÁó·Ö£®
¢ÜCÖÐÒºÌå²úÎïÑÕɫΪÉîºì×ØÉ«£¬Îª³ýÈ¥¸Ã²úÎïÖÐÈÔ²ÐÁôµÄÉÙÁ¿Cl2£¬¿ÉÏòÆäÖмÓÈëNaBrÈÜÒº£¬³ä·Ö·´Ó¦ºó£¬ÔÙ½øÐеķÖÀë²Ù×÷ÊÇ·ÖÒº£¨»òÕôÁ󣩣®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø