ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿îܼ°Æ仯ºÏÎï¹ã·ºÓ¦ÓÃÓÚ´ÅÐÔ²ÄÁÏ¡¢µç³Ø²ÄÁϼ°³¬Ó²²ÄÁϵÈÁìÓò¡£
£¨1£©CoxNi(1-x)Fe2O4£¨ÆäÖÐCo¡¢Ni¾ùΪ+2£©¿ÉÓÃ×÷H2O2·Ö½âµÄ´ß»¯¼Á£¬¾ßÓнϸߵĻîÐÔ¡£
¢Ù¸Ã´ß»¯¼ÁÖÐÌúÔªËصĻ¯ºÏ¼ÛΪ______¡£
¢Úͼ1±íʾÁ½ÖÖ²»Í¬·½·¨ÖƵõĴ߻¯¼ÁCoxNi(1-x)Fe2O4ÔÚ10¡æʱ´ß»¯·Ö½â6%µÄH2O2ÈÜÒºµÄÏà¶Ô³õʼËÙÂÊËæx±ä»¯ÇúÏß¡£ÓÉͼÖÐÐÅÏ¢¿ÉÖª£º______________·¨ÖÆÈ¡µÃµ½µÄ´ß»¯¼Á»îÐÔ¸ü¸ß£»Co2+¡¢Ni2+Á½ÖÖÀë×ÓÖд߻¯Ð§¹û¸üºÃµÄÊÇ______¡£
£¨2£©²ÝËáîÜÊÇÖƱ¸îܵÄÑõ»¯ÎïµÄÖØÒªÔÁÏ¡£ÏÂͼ2Ϊ¶þË®ºÏ²ÝËáîÜ£¨CoC2O4¡¤2H2O£©ÔÚ¿ÕÆøÖÐÊÜÈȵÄÖÊÁ¿±ä»¯ÇúÏߣ¬ÇúÏßÖÐ300¡æ¼°ÒÔÉÏËùµÃ¹ÌÌå¾ùΪîÜÑõ»¯Îï¡£
¢Ùͨ¹ý¼ÆËãÈ·¶¨AµãÊ£Óà¹ÌÌåµÄ»¯Ñ§³É·ÖΪ________________£¨Ìѧʽ£©¡£ÊÔд³öBµã¶ÔÓ¦µÄÎïÖÊÓëO2ÔÚ225¡æ~300¡æ·¢Éú·´Ó¦µÄ»¯Ñ§·½³Ìʽ£º_________________________________________¡£
¢ÚÈ¡Ò»¶¨ÖÊÁ¿µÄ¶þË®ºÏ²ÝËáîÜ·Ö½âºóµÄîÜÑõ»¯ÎÆäÖÐCoµÄ»¯ºÏ¼ÛΪ+2¡¢+3£©£¬ÓÃ480 mL 5 mol/LÑÎËáÇ¡ºÃÍêÈ«Èܽâ¹ÌÌ壬µÃµ½CoCl2ÈÜÒººÍ4.48 L£¨±ê×¼×´¿ö£©»ÆÂÌÉ«ÆøÌå¡£ÊÔÈ·¶¨¸ÃîÜÑõ»¯ÎïÖÐCo¡¢OµÄÎïÖʵÄÁ¿Ö®±ÈΪ___________¡£
¡¾´ð°¸¡¿+3΢²¨Ë®ÈÈCo2+CoC2O4 3CoC2O4 + 2O2 = Co3O4 +6CO2n(Co): n(O)=1mol: 1.2mol=5:6
¡¾½âÎö¡¿
£¨1£©¢Ù¸ù¾Ý»¯ºÏ¼Û´úÊýºÍΪ0¼ÆËãFeµÄ»¯ºÏ¼Û£¬CoxNi(1-x)Fe2O4ÖÐCo¡¢Ni¾ùΪ+2£¬OΪ-2¼Û£¬ÔòFeµÄ»¯ºÏ¼ÛΪ=+3£»
¢Ú¹ýÑõ»¯ÇâµÄ·Ö½âËÙÂÊÔ½´ó£¬´ß»¯¼Á»îÐÔ¸ü¸ß£¬¸ù¾ÝͼÏó¿ÉÖª£¬xÏàͬʱ£¬Î¢²¨Ë®ÈÈ·¨³õʼËٶȴóÓÚ³£¹æË®ÈÈ·¨£¬ËùÒÔ΢²¨Ë®ÈÈ·¨ÖƵô߻¯¼ÁµÄ»îÐÔ¸ü¸ß£»ÓÉͼ¿ÉÖª£¬ËæxÖµÔ½´ó£¬¹ýÑõ»¯ÇâµÄ·Ö½âËÙÂÊÔ½´ó£¬¶øxÔö´ó£¬Co2+µÄ±ÈÀýÔö´ó£¬ËùÒÔCo2+µÄ´ß»¯»îÐÔ¸ü¸ß£»
£¨2£©¢ÙÓÉͼ¿ÉÖª£¬CoC2O4¡¤2H2OµÄÖÊÁ¿Îª18.3g£¬ÎïÖʵÄÁ¿Îª =0.1mol£¬CoÔªËØÖÊÁ¿Îª5.9g£¬CµãîÜÑõ»¯ÎïÖÊÁ¿Îª8.03g£¬Ñõ»¯ÎïÖÐÑõÔªËØÖÊÁ¿Îª8.03g-5.9g=2.13g£¬ÔòÑõ»¯ÎïÖÐCoÔ×ÓÓëOÔ×ÓÎïÖʵÄÁ¿Ö®±ÈΪ0.1mol£ºmol¡Ö3£º4£¬ËùÒÔCµÄCoÑõ»¯ÎïΪCo3O4£»Bµã¶ÔÓ¦ÎïÖʵÄÖÊÁ¿Îª14.7g£¬ÓëÆäÆðʼÎïÖʵÄÖÊÁ¿Ïà±È¼õÉÙ18.3g-14.7g=3.6g£¬Îª½á¾§Ë®µÄÖÊÁ¿£¬ËùÒÔBµãÎïÖÊΪCoC2O4£¬ÓëÑõÆø·´Ó¦Éú³ÉCo3O4Óë¶þÑõ»¯Ì¼£¬·´Ó¦·½³ÌʽΪ3CoC2O4 + 2O2 = Co3O4 +6CO2£»
¢ÚÓɵç×ÓÊغ㣺n(Co3+) = 2 n(Cl2) = 0.4 mol£¬ÓɵçºÉÊغ㣺n(Co)×Ü =n(Co2+)ÈÜÒº= 0.5 n(Cl£) = 0.5¡Á( 2.4mol£0.2mol¡Á2)= 1 mol£¬ËùÒÔ¹ÌÌåÖеÄn(Co2+)= 1mol£0.4mol= 0.6 mol£»n(O)==1.2mol£¬ËùÒÔn(Co): n(O)=1mol: 1.2mol=5£º6¡£
¡¾ÌâÄ¿¡¿¹¤ÒµÉÏÒÔ¸õÌú¿ó(Ö÷Òª³É·ÖΪFeOºÍCr2O3£¬º¬ÓÐAl2O3¡¢SiO2µÈÔÓÖÊ)ΪÖ÷ÒªÔÁÏÉú²ú»¯¹¤ÔÁϺ췯ÄÆ(Ö÷Òª³É·ÖΪ:Na2Cr2O7¡¤2H2O)£¬ÆäÖ÷Òª¹¤ÒÕÁ÷³ÌÈçÏ£º
²éÔÄÏà¹Ø×ÊÁϵÃÖª:
i.³£ÎÂÏ£¬NaBiO3²»ÈÜÓÚË®£¬ÓÐÇ¿Ñõ»¯ÐÔ£¬ÔÚ¼îÐÔÌõ¼þÏÂÄܽ«Cr3+ת»¯ÎªCrO42££¬×ÔÉí±»»¹ÔΪBi(OH)3¹ÌÌå¡£
ii.
ÎïÖÊ | ¿ªÊ¼³ÁµíµÄpH | ÍêÈ«³ÁµíµÄpH |
Fe(OH)3 | 2.7 | 3.7 |
Al(OH)3 | 3.4 | 4.4 |
Cr(OH)3 | 4.6 | 5.9 |
Fe(OH)2 | 7.5 | 9.7 |
Bi(OH)3 | 0.7 | 4.5 |
»Ø´ðÏÂÁÐÎÊÌâ:
(1)½«¸õÌú¿ó¿óʯ·ÛËéµÄÄ¿µÄÊÇ________________________________________¡£
(2)²Ù×÷I¡¢III¡¢IVÓõ½µÄÖ÷Òª²£Á§ÒÇÆ÷Óв£Á§°ôºÍ___________£¨ÌîÒÇÆ÷Ãû³Æ£©¡£
(3)д³ö¢Ü·´Ó¦µÄ»¯Ñ§·½³Ìʽ_____________________________________________¡£
(4)¢ÝÖÐËữÊÇʹCrO42£×ª»¯ÎªCr2O72£Ð´³ö¸Ã·´Ó¦µÄÀë×Ó·½³Ìʽ______¡£
(5)½«ÈÜÒºH¾ÏÂÁвÙ×÷£ºÕô·¢Å¨Ëõ£¬__________£¬¹ýÂË£¬Ï´µÓ£¬¸ÉÔï¼´µÃºì·¯ÄÆ¡£
(6)È¡Ò»¶¨ÖÊÁ¿µÄ¹ÌÌåDÈܽâÓÚ200 mLµÄÏ¡ÁòËáÖУ¬ÏòËùµÃÈÜÒºÖмÓÈë5.0 mol/LµÄNaOHÈÜÒº£¬Éú³É³ÁµíµÄÎïÖʵÄÁ¿£¨n£©Óë¼ÓÈëNaOHÈÜÒºµÄÌå»ý£¨V£©¹ØϵÈçͼËùʾ£¬ÔòÏ¡ÁòËáµÄŨ¶ÈΪ_________£¬¹ÌÌåDÖк¬Fe»¯ºÏÎïµÄÎïÖʵÄÁ¿Îª___________¡£