£¨2011?³¯ÑôÇø¶þÄ££©H
2O
2ÊÇÖØÒªµÄ»¯Ñ§ÊÔ¼Á£¬ÔÚʵÑéÊÒºÍÉú²úʵ¼ÊÖÐÓ¦Óù㷺£®
¢ñ£®Ó¦ÓÃÆä²»Îȶ¨ÐÔ£¬H
2O
2¿É±»ÓÃÀ´Ñо¿´ß»¯¼Á¶Ô·´Ó¦ËÙÂʵÄÓ°Ï죮
£¨1£©Ð´³öH
2O
2ÔÚMnO
2´ß»¯Ï·ֽâµÄ»¯Ñ§·½³Ìʽ
£®
£¨2£©H
2O
2Éú²ú¹ý³ÌÒªÑϸñ±ÜÃâ»ìÈëFe
2+ºÍFe
3+£¬·ñÔò»á·¢ÉúÈçÏÂÁ½¸ö·´Ó¦£¬¼Ó¿ìÆä·Ö½â£¬ÇÒFe
2+ºÍFe
3+¸÷×ÔµÄÁ¿±£³Ö²»±ä£®
¢Ù2Fe
2++H
2O
2+2H
+¨T2Fe
3++2H
2O
¢Ú
2Fe3++H2O2=2Fe2++O2¡ü+2H+
2Fe3++H2O2=2Fe2++O2¡ü+2H+
£¨ÌîÀë×Ó·½³Ìʽ£©
£¨3£©´Ó£¨1£©ºÍ£¨2£©·ÖÎö£¬ÔÚÏÂÁÐÄÄÀàÔªËØÖÐÑ°ÕÒH
2O
2·Ö½âµÄ´ß»¯¼Á¸üÓÐÑо¿¼ÛÖµ
b
b
£®
a£®Ö÷×åÔªËØb£®¹ý¶ÈÔªËØc£®Áã×åÔªËØ
¢ò£®H
2O
2µÄË®ÈÜÒºÏÔÈõËáÐÔ£¬Ð´³öÒ»¸öÓÃÑÎËáÖÆÈ¡H
2O
2µÄ»¯Ñ§·½³Ìʽ
Na2O2+2HCl=2NaCl+H2O2
Na2O2+2HCl=2NaCl+H2O2
£®
¢ó£®H
2O
2ÔÚʹÓÃÖÐͨ³£²»»á´øÀ´ÎÛȾ£®
£¨1£©¹¤ÒµÉÏÀûÓÃCl
2+H
2O
2¨T2HCl+O
2³ýÂÈ£¬ÔÚ´Ë·´Ó¦Öб»Ñõ»¯µÄÎïÖÊÊÇ
H2O2
H2O2
£®
£¨2£©Ïû³ýij·ÏÒºÖÐÇ軯Îº¬CN
-£©£¬Íê³ÉÏÂÁз´Ó¦£ºCN
-+H
2O
2=HCO3-
=HCO3-
+NH
3¡ü
¢ô£®ÊµÑéÊÒ³£ÓÃËáÐÔKMnO
4ÈÜÒº²â¶¨H
2O
2µÄŨ¶È£®
È¡10.00mLH
2O
2ÈÜÒºÑùÆ·£¨ÃܶȽüËÆΪ1g/mL£©ÓÚ׶ÐÎÆ¿ÖУ¬¼ÓË®µ½50.00mL£¬µ±µÎÈë0.10mol/L KMnO
4ÈÜÒº40.00mLºó£¬µ½´ïµÎ¶¨Öյ㣮ÔòÔÑùÆ·ÖÐH
2O
2µÄÖÊÁ¿·ÖÊýÊÇ
3.4%£¬
3.4%£¬
£®
£¨ÒÑÖª£º2KMnO
4+5H
2O
2+3H
2SO
4¨TK
2SO
4+2MnSO
4+5O
2¡ü+8H
2O¡ü£©