ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¸ßÃÌËá¼Ø£¨KMnO4£©ºÍË«ÑõË®£¨H2O2£©¶¼Êdz£¼ûÎïÖÊ¡£
(1)д³ö¶þÕß¹²Í¬ÔªËصÄÔ×Ó×îÍâ²ã¹ìµÀ±íʾʽ£º___________KÔÚÖÜÆÚ±íµÄλÖÃÊÇ ___________ ;25MnÊôÓÚ_____________×åÔªËØ¡£
(2)Ë«ÑõË®£¨H2O2£©ºÍË®¶¼ÊǼ«Èõµç½âÖÊ£¬µ«H2O2±ÈH2O¸üÏÔËáÐÔ¡£Èô°ÑH2O2¿´³ÉÊǶþÔªÈõËᣬÇëд³öËüÔÚË®ÖеĵçÀë·½³Ìʽ£º_____________
(3)2g¸ßÃÌËá¼ØÈÜÓÚ10mlˮʱÈÜҺûÓÐÃ÷ÏÔµÄζȱ仯£¬Çë½âÊÍÀíÓÉ__________________________________,Ñõ»¯¼ÁÒ»°ãÀ´Ëµ£¬ËáÐÔԽǿÆäÑõ»¯ÐÔҲԽǿ£¬Òò´Ë³£ÓÃËữµÄ¸ßÃÌËá¼Ø×÷Ñõ»¯¼Á¡£ÓøßÃÌËá¼Ø·¨²â¶¨H2O2ʱ£¬²»ÄÜÓÃHClÀ´ËữÔÒòÊÇ_________________;
(4)ÍùH2O2Ë®ÈÜÒºÖеÎÈëÒ»µÎËáÐÔKMnO4ÈÜÒº£¬´ÓÈÜÒºÄÚ²¿Îö³ö´óÁ¿ÎÞÉ«ÆøÅÝ¡£Ð´³ö¿ÉÄܵĻ¯Ñ§·´Ó¦·½³Ìʽ¡£_____________________________________
(5)ÍùH2O2Ë®ÈÜÒºÖеÎÈëËáÐÔKMnO4ÈÜÒº£¬ÏÂÁз½³Ìʽ´íÎóµÄÊÇ__________
A 3H2O2£«2KMnO4£«3H2SO4¡úK2SO4£«2MnSO4£«6H2O£«4O2¡ü
B 5H2O2£«2KMnO4£«3H2SO4¡úK2SO4£«2MnSO4£«8H2O£«5O2¡ü
C 7H2O2£«2KMnO4£«3H2SO4¡úK2SO4£«2MnSO4£«10H2O£«6O2¡ü
D 9H2O2£«2KMnO4£«3H2SO4¡úK2SO4£«2MnSO4£«12H2O£«7O2¡ü
¡¾´ð°¸¡¿ µÚËÄÖÜÆÚ¢ñA ¢÷B»ò¸±×å H2O2
H+ + HO2-£¬ HO2-
H+ + O22- ¸ßÃÌËá¼ØÈÜÓÚˮʱÀ©É¢¹ý³ÌÎüÊÕµÄÄÜÁ¿ÓëË®ºÏ¹ý³Ì·Å³öµÄÄÜÁ¿Ïà½ü ÒòHCl¾ßÓл¹ÔÐÔ 5H2O2£«2KMnO4£«3H2SO4 ¡ú K2SO4£«2MnSO4£«8H2O£«5O2¡ü£¬2 H2O2
2H2O + O2¡ü A
¡¾½âÎö¡¿
(1)¶þÕß¹²Í¬ÔªËØΪÑõÔªËØ£¬OÔ×Ó×îÍâ²ã¹ìµÀ±íʾʽΪ£º£»KÔÚµÚËĸöÖÜÆÚ£¬×îÍâ²ãÒ»¸öµç×Ó£¬ËùÒÔÔÚÖÜÆÚ±íÖеÄλÖÃÊǵÚËÄÖÜÆÚIA×壻25MnÊôÓÚVIIB×åÔªËØ£¬¹Ê´ð°¸Îª£º
£»µÚËÄÖÜÆÚIA×壻VIIB»ò¸±×壻
(2)¶àÔªÈõËá·Ö²½µçÀ룬ÒÔµÚÒ»²½ÎªÖ÷£¬ËùÒÔµçÀë·½³ÌʽΪ£ºH2O2H+ + HO2-£¬HO2-
H++O22-£»´ð°¸Îª£ºH2O2
H+ + HO2-£¬HO2-
H++O22-£»
(3)ûÓÐÃ÷ÏÔµÄζȱ仯£¬ËµÃ÷¸ßÃÌËá¼ØÈÜÓÚË®À©É¢¹ý³ÌÎüÊÕµÄÄÜÁ¿ÓëË®ºÏ¹ý³Ì·Å³öµÄÄÜÁ¿Ïà½ü»òÏàµÈ£¬¸ßÃÌËá¼ØÇ¿Ñõ»¯ÐÔ£¬HCl¾ßÓл¹ÔÐÔ£¬»á·¢ÉúÑõ»¯»¹Ô£¬´ð°¸Îª£º¸ßÃÌËá¼ØÈÜÓÚˮʱÀ©É¢¹ý³ÌÎüÊÕµÄÄÜÁ¿ÓëË®ºÏ¹ý³Ì·Å³öµÄÄÜÁ¿Ïà½ü£»ÒòHCl¾ßÓл¹ÔÐÔ£»
(4)ÍùH2O2Ë®ÈÜÒºÖеÎÈëÒ»µÎËáÐÔKMnO4ÈÜÒº£¬´ÓÈÜÒºÄÚ²¿Îö³ö´óÁ¿ÎÞÉ«ÆøÅÝ£¬ËµÃ÷²úÉúÑõÆø£¬¿ÉÄÜÊÇÁ½Õß·´Ó¦²úÉú£¬»òÕß¹ýÑõ»¯Çâ×ÔÉí·Ö½â²úÉúÑõÆø£»·½³ÌʽΪ£º5H2O2£«2KMnO4£«3H2SO4=K2SO4£«2MnSO4£«8H2O£«5O2¡ü£¬2 H2O2 2H2O + O2¡ü£»
(5)¸ù¾ÝµÃʧµç×ÓÊغãºÍÔ×ÓÊغãÅжϣ¬A´íÎó¡£

¡¾ÌâÄ¿¡¿Ï±í¼Ç¼ÁËt¡æʱµÄ4·ÝÏàͬµÄÁòËáÍÈÜÒºÖмÓÈëÎÞË®ÁòËá͵ÄÖÊÁ¿ÒÔ¼°Îö³öµÄÁòËá ;§Ìå(CuSO4¡¤5H2O)µÄÖÊÁ¿(ζȱ£³Ö²»±ä)µÄʵÑéÊý駣º
ÁòËáÍÈÜÒº | ¢Ù | ¢Ú | ¢Û | ¢Ü |
¼ÓÈëµÄÎÞË®ÁòËáÍ(g) | 3.00 | 5.50 | 8.50 | 10.00 |
Îö³öµÄÁòËá;§Ìå(g) | 1.00 | 5.50 | 10.90 | 13.60 |
µ±¼ÓÈë6.20gÎÞË®ÁòËáÍʱ£¬Îö³öÁòËá;§ÌåµÄÖÊÁ¿(g)Ϊ
A.7.70B.6.76C.5.85D.9.00
¡¾ÌâÄ¿¡¿ÖйúÑо¿ÈËÔ±ÑÐÖƳöÒ»ÖÖÐÂÐ͸´ºÏ¹â´ß»¯¼Á£¬ÀûÓÃÌ«Ñô¹âÔÚ´ß»¯¼Á±íÃæʵÏÖ¸ßЧ·Ö½âË®£¬ÆäÖ÷Òª¹ý³ÌÈçÏÂͼËùʾ¡£
ÒÑÖª£º¼¸ÖÖÎïÖÊÖл¯Ñ§¼üµÄ¼üÄÜÈçϱíËùʾ¡£
»¯Ñ§¼ü | H2OÖÐH¡ªO¼ü | O2ÖÐO£½O ¼ü | H2ÖÐH¡ªH¼ü | H2O2ÖÐO¡ªO¼ü | H2O2ÖÐO¡ªH¼ü |
¼üÄÜkJ/mol | 463 | 496 | 436 | 138 | 463 |
Èô·´Ó¦¹ý³ÌÖзֽâÁË2 molË®£¬ÔòÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ
A. ×Ü·´Ó¦Îª2H2O2H2¡ü+O2¡ü
B. ¹ý³ÌIÎüÊÕÁË926 kJÄÜÁ¿
C. ¹ý³ÌII·Å³öÁË574 kJÄÜÁ¿
D. ¹ý³Ì¢óÊôÓÚ·ÅÈÈ·´Ó¦