ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¢ñ.¹¤ÒµÒÔÈíÃÌ¿ó£¨Ö÷Òª³É·ÖÊÇMnO2£¬º¬ÓÐSiO2¡¢Fe2O3µÈÉÙÁ¿ÔÓÖÊ£©ÎªÖ÷ÒªÔÁÏÖƱ¸¸ßÐÔÄܵĴÅÐÔ²ÄÁÏ̼ËáÃÌ£¨MnCO3£©¡£Æ乤ҵÁ÷³ÌÈçÏ£º
(1)½þÃ̹ý³ÌÖÐFe2O3ÓëSO2·´Ó¦µÄÀë×Ó·½³ÌʽΪFe2O3+SO2+2H+=2Fe2++SO42-+H2O£¬¸Ã·´Ó¦ÊǾÀúÒÔÏÂÁ½²½·´Ó¦ÊµÏֵġ£
¢¡£ºFe2O3+6H+ =2Fe3++3H2O
¢¢£º____________________________________________£¨Àë×Ó·½³Ìʽ£©¡£
(2)¹ýÂË¢ñËùµÃÂËÒºÖÐÖ÷Òª´æÔÚµÄÁ½ÖÖ½ðÊôÑôÀë×ÓΪ____________£¨ÌîÀë×Ó·ûºÅ£©¡£
(3)Ñõ»¯¹ý³ÌÖб»MnO2Ñõ»¯µÄÎïÖÊÓУ¨Ð´»¯Ñ§Ê½£©£º____________________¡£
(4) ¡°½þÃÌ¡±·´Ó¦ÖÐÍùÍùÓи±²úÎïMnS2O6Éú³É£¬Î¶ȶԡ°½þÃÌ¡±·´Ó¦µÄÓ°ÏìÈçͼËùʾ£¬Îª¼õÉÙMnS2O6µÄÉú³É£¬¡°½þÃÌ¡±µÄÊÊÒËζÈÊÇ_________£»Ïò¹ýÂË¢òËùµÃµÄÂËÒºÖмÓÈëNH4HCO3ÈÜҺʱζȲ»ÒËÌ«¸ßµÄÔÒòÊÇ______________________¡£
(5).¼ÓÈëNH4HCO3ÈÜÒººó£¬Éú³ÉMnCO3³Áµí£¬Í¬Ê±»¹ÓÐÆøÌåÉú³É£¬Ð´³ö·´Ó¦µÄÀë×Ó·½³Ìʽ£º_______________________________________________________¡£
¢ò.ÖؽðÊôÔªËظõµÄ¶¾ÐԽϴ󣬺¬¸õ·ÏË®Ðè¾´¦Àí´ï±êºó²ÅÄÜÅÅ·Å¡£
ËáÐÔÌõ¼þÏ£¬Áù¼Û¸õÖ÷ÒªÒÔCr2O72-ÐÎʽ´æÔÚ£¬¹¤ÒµÉϳ£Óõç½â·¨´¦Àíº¬Cr2O72-µÄ·ÏË®¡£ÊµÑéÊÒÓÃÈçͼװÖÃÄ£Äâ´¦Àíº¬Cr2O72-·ÏË®£¬Ñô¼«·´Ó¦Ê½Fe-2e-=Fe2+£¬Òõ¼«·´Ó¦Ê½2H++2e-=H2¡üËæ×ŵç½â½øÐУ¬Òõ¼«¸½½üpHÉý¸ß¡£
(1)µç½âʱÄÜ·ñÓÃCuµç¼«À´´úÌæFeµç¼«?____(Ìî¡°ÄÜ¡±»ò¡°²»ÄÜ¡±)£¬ÀíÓÉÊÇ______________________¡£
(2)µç½âʱÑô¼«¸½½üÈÜÒºÖÐCr2O72-ת»¯ÎªCr3+µÄÀë×Ó·½³ÌʽΪ______________________________¡£
(3)ÉÏÊö·´Ó¦µÃµ½µÄ½ðÊôÑôÀë×ÓÔÚÒõ¼«Çø¿É³ÁµíÍêÈ«£¬´ÓÆä¶ÔË®µÄµçÀëƽºâÓ°Ïì½Ç¶È½âÊÍÆäÔÒò__________________________¡£
¡¾´ð°¸¡¿2Fe3++SO2 +2H2O = 2Fe2++SO42£+4H+ Fe2+¡¢Mn2+ Fe2+¡¢SO2 90¡æ ·ÀÖ¹NH4HCO3ÊÜÈȷֽ⣬Ìá¸ßÔÁÏÀûÓÃÂÊ Mn2++2HCO3£=MnCO3¡ý+CO2¡ü+H2O ²»ÄÜ ÒòÑô¼«²úÉúµÄCu2+²»ÄÜʹCr2O72»¹Ôµ½µÍ¼Û̬ 6Fe2++Cr2O72+14H+ = 6Fe3++2Cr3++7H2O Ë®ÖеÄH+ÔÚÒõ¼«Çø·Åµç£¬H+Ũ¶È¼õС´ÙʹˮµÄµçÀëƽºâH2OH++OHÏòÓÒÒƶ¯£¬Òõ¼«ÇøOHŨ¶ÈÔö´óÓë½ðÊôÑôÀë×ÓÔÚÒõ¼«Çø½áºÏ¶ø³ÁµíÍêÈ«
¡¾½âÎö¡¿
¢ñ(1)¸ù¾Ý×Ü·´Ó¦¼õÈ¥µÚ¢¡¸ö·´Ó¦£º2Fe3++SO2 +2H2O = 2Fe2++SO42£+4H+¡£
(2)½þÃ̹ý³ÌÖжþÑõ»¯Ã̺ͶþÑõ»¯Áò·¢ÉúÑõ»¯»¹Ô·´Ó¦£¬Òò´Ë¹ýÂË¢ñËùµÃÂËÒºÖÐÖ÷Òª´æÔÚµÄÁ½ÖÖ½ðÊôÑôÀë×ÓΪFe2+¡¢Mn2+¡£
(3)Ñõ»¯¹ý³ÌÖб»MnO2Ñõ»¯µÄÎïÖÊÖ÷ÒªÊǹýÁ¿µÄ¶þÑõ»¯ÁòºÍFe2+¡£
(4)¸ù¾Ýͼ¿ÉÖª£¬90¡æʱ£¬MnS2O6µÄÉú³ÉÂʵͣ¬Ã̽þ³öÂʸߣ¬Î¶ÈÔٸߣ¬±ä»¯²»´ó£¬Ôò¡°½þÃÌ¡±µÄÊÊÒËζÈÊÇ90¡æ£¬NH4HCO3ÊÜÈÈÒ׷ֽ⣬ζȲ»ÒËÌ«¸ß£¬·ÀÖ¹NH4HCO3ÊÜÈȷֽ⣬Ìá¸ßÔÁÏÀûÓÃÂÊ¡£
(5)¼ÓÈëNH4HCO3ÈÜÒººó£¬·¢Éú³¹µ×µÄË«Ë®½â£¬Éú³ÉMnCO3³Áµí£¬Í¬Ê±»¹ÓÐÆøÌåÉú³É¡£
¢ò(1)Íʧȥµç×ӵõ½µÄÑôÀë×ÓÊÇÍÀë×Ó£¬¸ÃÀë×Ó²»¾ßÓл¹ÔÐÔ£¬²»ÄܺÍÖظõËá¸ùÖ®¼ä·¢Éú·´Ó¦¡£
(2)Cr2O72£¾ßÓÐÇ¿Ñõ»¯ÐÔ£¬¿ÉÒÔ½«ÑÇÌúÀë×ÓÑõ»¯ÎªÌúÀë×Ó£¬×ÔÉí±»»¹ÔΪ2Cr3+£¬Òò´Ëд³öÀë×Ó·½³Ìʽ¡£
(3)Ë®ÖеÄH+ÔÚÒõ¼«Çø·Åµç£¬H+Ũ¶È¼õС´ÙʹˮµÄµçÀëƽºâH2OH++OHÏòÓÒÒƶ¯£¬Òõ¼«ÇøOH¡£
¢ñ(1)¸ù¾Ý×Ü·´Ó¦¼õÈ¥µÚ¢¡¸ö·´Ó¦£º2Fe3++SO2 +2H2O = 2Fe2++SO42£+4H+£¬¹Ê´ð°¸Îª£º2Fe3++ SO2 + 2H2O = 2Fe2++SO42£+4H+¡£
(2)½þÃ̹ý³ÌÖжþÑõ»¯Ã̺ͶþÑõ»¯Áò·¢ÉúÑõ»¯»¹Ô·´Ó¦£¬Òò´Ë¹ýÂË¢ñËùµÃÂËÒºÖÐÖ÷Òª´æÔÚµÄÁ½ÖÖ½ðÊôÑôÀë×ÓΪFe2+¡¢Mn2+£¬¹Ê´ð°¸Îª£ºFe2+¡¢Mn2+¡£
(3)Ñõ»¯¹ý³ÌÖб»MnO2Ñõ»¯µÄÎïÖÊÖ÷ÒªÊǹýÁ¿µÄ¶þÑõ»¯ÁòºÍ½þÃ̹ý³ÌÖÐÉú³ÉµÄFe2+£¬¹Ê´ð°¸Îª£ºFe2+¡¢SO2¡£
(4)¸ù¾Ýͼ¿ÉÖª£¬90¡æʱ£¬MnS2O6µÄÉú³ÉÂʵͣ¬Ã̽þ³öÂʸߣ¬Î¶ÈÔٸߣ¬±ä»¯²»´ó£¬Ôò¡°½þÃÌ¡±µÄÊÊÒËζÈÊÇ90¡æ£¬NH4HCO3ÊÜÈÈÒ׷ֽ⣬ζȲ»ÒËÌ«¸ß£¬·ÀÖ¹NH4HCO3ÊÜÈȷֽ⣬Ìá¸ßÔÁÏÀûÓÃÂÊ£¬¹Ê´ð°¸Îª£º90¡æ£»·ÀÖ¹NH4HCO3ÊÜÈȷֽ⣬Ìá¸ßÔÁÏÀûÓÃÂÊ¡£
(5)¼ÓÈëNH4HCO3ÈÜÒººó£¬·¢Éú³¹µ×µÄË«Ë®½â£¬Éú³ÉMnCO3³Áµí£¬Í¬Ê±»¹ÓÐÆøÌåÉú³É£¬Ð´³ö·´Ó¦µÄÀë×Ó·½³Ìʽ£ºMn2++2HCO3£=MnCO3¡ý+CO2¡ü+H2O£¬¹Ê´ð°¸Îª£»Mn2++2HCO3£= MnCO3¡ý+CO2¡ü+H2O¡£
¢ò(1)Íʧȥµç×ӵõ½µÄÑôÀë×ÓÊÇÍÀë×Ó£¬¸ÃÀë×Ó²»¾ßÓл¹ÔÐÔ£¬²»ÄܺÍÖظõËá¸ùÖ®¼ä·¢Éú·´Ó¦£¬¹Ê´ð°¸Îª£º²»ÄÜ£»ÒòÑô¼«²úÉúµÄCu2+²»ÄÜʹCr2O72»¹Ôµ½µÍ¼Û̬¡£
(2)Cr2O72£¾ßÓÐÇ¿Ñõ»¯ÐÔ£¬¿ÉÒÔ½«ÑÇÌúÀë×ÓÑõ»¯ÎªÌúÀë×Ó£¬×ÔÉí±»»¹ÔΪ2Cr3+£¬Òò´ËÀë×Ó·½³ÌʽΪ6Fe2++Cr2O72+14H+ = 6Fe3++2Cr3++7H2O£¬¹Ê´ð°¸Îª£º6Fe2++Cr2O72+14H+= 6Fe3+ + 2Cr3++7H2O¡£
(3)Ë®ÖеÄH+ÔÚÒõ¼«Çø·Åµç£¬H+Ũ¶È¼õС´ÙʹˮµÄµçÀëƽºâH2OH++OHÏòÓÒÒƶ¯£¬Òõ¼«ÇøOH£¬¹Ê´ð°¸Îª£ºË®ÖеÄH+ÔÚÒõ¼«Çø·Åµç£¬H+Ũ¶È¼õС´ÙʹˮµÄµçÀëƽºâH2OH++OHÏòÓÒÒƶ¯£¬Òõ¼«ÇøOHŨ¶ÈÔö´óÓë½ðÊôÑôÀë×ÓÔÚÒõ¼«Çø½áºÏ¶ø³ÁµíÍêÈ«¡£
¡¾ÌâÄ¿¡¿¼îʽ̼ËáÍ[Cu2(OH)2CO3]ÊÇÒ»ÖÖÓÃ;¹ã·ºµÄ»¯¹¤ÔÁÏ£¬ÊµÑéÊÒÒÔ´¿ÍмΪÔÁÏÖÆÈ¡µÄÁ÷³ÌÈçÏÂ:
(1)¡°Èܽ⡱²½Öè·´Ó¦µÄÀë×Ó·½³ÌʽΪ_______£®Î¶ÈÒË¿ØÖÆÔÚ50¡æ×óÓÒ£¬Èô¸ßÓÚ50¡æ£¬ÈÜÒºÖÐO2ÈܽâÁ¿¼õÉÙ¡¢CuµÄת»¯ÂʽµµÍ£¬ÈôµÍÓÚ50¡æ £¬_____
(2)¡°·´Ó¦¡±²½ÖèÉú³ÉCu2(OH)2CO3µÄ»¯Ñ§·½³ÌʽΪ_________¡£·´Ó¦ºóÈÜÒºÖÐÍÔªËزÐÁôÁ¿ÊÜpHºÍ·´Ó¦Ê±¼äµÄÓ°ÏìÈçͼËùʾ:
ÅжϷ´Ó¦µÄ×î¼ÑÌõ¼þ: pHΪ___¡¢·´Ó¦Ê±¼äΪ____h¡£
(3)¼ìÑéCu2(OH)2CO3Ï´µÓÊÇ·ñÍêÈ«µÄ·½·¨ÊÇ____________________
(4) Cu2(OH)2CO3Ò²¿ÉÒÔ±íʾΪCuCO3¡¤Cu(OH)2¡£ ²éÔÄÎÄÏ×£¬ÉÏÊö·´Ó¦Ìõ¼þÏ»¹¿ÉÄÜÉú³ÉÉÙÁ¿CuCO3¡¤Cu(OH)2¡£Îª²â¶¨²úÆ·µÄ´¿¶È[²úÆ·ÖÐCu2(OH)2CO3µÄÖÊÁ¿·ÖÊý]£¬È¡10.97g¸ÉÔïÑùÆ·£¬400¡æ×óÓÒ¼ÓÈÈ£¬²âµÃ¹ÌÌåÖÊÁ¿Ëæʱ¼ä±ä»¯¹ØϵÈçͼËùʾ¡£
ÒÑÖª: 8.00g¹ÌÌåΪºÚÉ«´¿¾»Îï¡£
ÓйØÎïÖʵÄĦ¶ûÖÊÁ¿Èç±í£º
ÎïÖÊ | CuCO3¡¤Cu(OH)2 | CuCO3¡¤2Cu(OH)2 | CuO |
Ħ¶ûÖÊÁ¿/g¡¤mol-1 | 222 | 320 | 80 |
Çë¼ÆËã²úÆ·µÄ´¿¶È(д³ö¼ÆËã¹ý³Ì£¬½á¹û±£Áô3λÓÐЧÊý×Ö)¡£______