ÌâÄ¿ÄÚÈÝ

1£®ÔÚµÍÎÂϵç½â±¥ºÍKHSO4ÈÜÒº¿ÉÖƱ¸K2S2O8£¬µç½â×°ÖÃÈçͼËùʾ£®ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®Ñô¼«µÄµç¼«·´Ó¦Ê½Îª2SO42--2e-¨TS2O82-
B£®µç½âµÄ×Ü·´Ó¦·½³ÌʽΪ2KHSO4$\frac{\underline{\;ͨµç\;}}{\;}$K2S2O8+H2¡ü
C£®Ò»¶Îʱ¼äºó£¬ÈÜÒºµÄpH¼õС
D£®µç½â¹ý³ÌÖУ¬Ñô¼«²úÉú΢Á¿ÄÜʹʪÈóµÄµí·ÛKIÊÔÖ½±äÀ¶µÄÓÐÉ«µ¥ÖÊÆøÌ壬¸ÃÆøÌå¿ÉÄÜÊÇO3

·ÖÎö A¡¢µç½âKHSO4ÈÜÒº£¬SO42-ʧµç×ÓÉú³ÉS2O82-£¬´ÓµÃʧµç×ÓÊغãµÃÖª2molSO42-ʧȥ2molµç×Ó£»
B¡¢µÃ½âÁòËáÇâ¼Ø£¬ÁòËá¸ùÔÚÑô¼«·Åµç£¬ÇâÀë×ÓÔÚÒõ¼«·Åµç£»
C¡¢ÒÀ¾Ýµç¼«·´Ó¦·½³ÌʽÅжÏÇâÀë×ÓŨ¶È¼õС£»
D¡¢Ñô¼«ÎªÒõÀë×ӷŵ磬Éú³ÉÄÜÑõ»¯I-µÄÆøÌ壬ÇÒΪÓÐÉ«£¬ÔòӦΪO3£¬¿ÉÀí½â³ÉOH-·ÅµçÉú³ÉO2£¬O2ÔڷŵçÌõ¼þϽøÒ»²½×ª»¯ÎªO3£®

½â´ð ½â£ºA¡¢µç½âKHSO4ÈÜÒº£¬SO42-ʧµç×ÓÉú³ÉS2O82-£¬»¯ºÏ¼Û±ä»¯Îª´Ó+6¼ÛÉý¸ßΪ+7¼Û£¬Ê§È¥1¸öµç×Ó£¬¹Êµç¼«·´Ó¦Ê½Îª£º2SO42--2e-¨TS2O82-£¬¹ÊAÕýÈ·£»
B¡¢µç½âKHSO4ÈÜÒº£¬SO42-ʧµç×ÓÉú³ÉS2O82-£¬H+µÃµç×ÓÉú³ÉH2£¬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ£º2KHSO4$\frac{\underline{\;ͨµç\;}}{\;}$K2S2O8+H2¡ü£¬¹ÊBÕýÈ·£»
C¡¢Í¨¹ýB·ÖÎö¿ÉÖª£¬2KHSO4$\frac{\underline{\;ͨµç\;}}{\;}$K2S2O8+H2¡ü£¬¹Ê·´Ó¦Ò»¶Îʱ¼äºó£¬ÈÜÒºÖÐÇâÀë×ÓŨ¶È¼õÉÙ£¬pHÔö´ó£¬¹ÊC´íÎó£»
D¡¢Ñô¼«ÎªÒõÀë×ӷŵ磬Éú³ÉÄÜÑõ»¯I-µÄÆøÌ壬ÇÒΪÓÐÉ«£¬ÔòӦΪO3£¬¿ÉÀí½â³ÉOH-·ÅµçÉú³ÉO2£¬O2ÔڷŵçÌõ¼þϽøÒ»²½×ª»¯ÎªO3£¬¹ÊDÕýÈ·£¬
¹ÊÑ¡C£®

µãÆÀ ±¾Ì⿼²éÁ˵ç½âÔ­ÀíµÄ·ÖÎöÅжϣ¬ÊµÑé¹ý³Ì·ÖÎöÅжϣ¬ÕÆÎÕÎïÖÊÐÔÖʺ͵ç½âÔ­Àí£¬Ñõ»¯»¹Ô­·´Ó¦µç×ÓÊغãÅäƽÀë×Ó·½³ÌʽÊǽâÌâ¹Ø¼ü£¬ÌâÄ¿ÄѶÈÖеȣ®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
1£®ÈçͼΪµç½â·¨´¦Àíº¬CN-¡¢Cr2O72-ºÍCrO42-µÈÓк¦Àë×ÓµÄËáÐÔ·ÏË®µÄʾÒâͼ£¬Í¼¢Ù´¦µç½â³ØÖÐÀûÓÃÑô¼«²úÉúµÄÑôÀë×Ó½«Cr2O72-ºÍCrO42-»¹Ô­³ÉCr3+£¬¾­·ÖÀëÓк¦½ðÊôÀë×Ӻ󣬷ÏÒº¾­¢Ü´¦µç½â³Ø£¬½«CN-ת»¯ÎªCO32-ºÍN2¶ø³ýÈ¥£®¸ù¾ÝÐÅÏ¢»Ø´ðÏÂÁÐÎÊÌ⣺

£¨1£©¢Ù¢Üµç½â³ØµÄÒõ¼«»á²úÉúÒ»ÖÖ¿ÉȼÆøÌ壬¸ÃÆøÌåÊÇÇâÆø£»²½Öè¢ÛʹÓÃÉÔ¹ýÁ¿µÄʯ»Ò£¬¼ÈÍêÈ«³ÁµíCr3+£¬ÓÖ½µµÍSO42-µÄº¬Á¿£¬ÓÉ´Ë¿ÉÖª²ÐÔü2µÄ³É·ÖΪCr£¨OH£©3ºÍÁòËá¸Æ
£¨2£©²½Öè¢ÙÖÐÑô¼«µÄµç¼«·´Ó¦Ê½ÎªFe-2e-=Fe2+£¬²úÉúµÄÑôÀë×Ó»¹Ô­Cr2O72-µÄÀë×Ó·½³ÌʽΪCr2O72-+6Fe2++14H+¨T2Cr3++6Fe3++7H2O£®
£¨3£©²½Öè¢ÜµÄµç½â³ØÖУ¬Ñô¼«µÄµç¼«·´Ó¦Ê½Îª2CN--12OH--10e-=2CO32-+N2¡ü+6H2O£®
£¨4£©ÒÑÖª¢ÚÈÜÒºÖÐËùº¬Cr3+µÄŨ¶ÈΪ0.6mol/L£¬Îª·ÀÖ¹Fe£¨OH£©3²ÐÔüÖк¬ÓÐCr£¨OH£©3£¬¢ÚËùµ÷½ÚpHֵӦСÓÚ4£®[³£ÎÂÏ£¬Cr£¨OH£©3µÄÈܶȻý³£Êý Ksp=6¡Á10-31]
£¨5£©×î³õ·ÏË®ÖÐCN-µÄŨ¶ÈΪ0.08mol/L£¬ÒªÍêÈ«´¦Àí1m3ÕâÖÖ·ÏË®£¬¢Ù¢ÜÁ½´¦µç½â³ØÒõ¼«µÃµ½ÆøÌåÔÚ±ê¿öϵÄ×ÜÌå»ýÖÁÉÙΪ24.64m3£¨ºöÂÔÕû¸ö¹ý³ÌÈÜÒºÌå»ý±ä»¯£¬¸÷²½·´Ó¦¾ùÍêÈ«£¬¸÷µç¼«Ö»·¢Éúµ¥Ò»·´Ó¦ÇÒ¿ÕÆø²»²Î¼Ó·´Ó¦£©£®

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

¾«Ó¢¼Ò½ÌÍø