ÌâÄ¿ÄÚÈÝ
Ñõ»¯»¹ÔµÎ¶¨ÔÀíͬÖк͵ζ¨ÔÀíÏàËÆ£¬ÎªÁ˲ⶨijδ֪Ũ¶ÈµÄNaHSO3ÈÜÒºµÄŨ¶È£¬ÏÖÓÃ0.1000mol/LµÄËáÐÔKMnO4ÈÜÒº½øÐе樣¬»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©ÅäƽÀë×Ó·½³Ìʽ£º MnO4-+ HSO3-+ H+¡ª¡ª Mn2++ SO42-+ H2O
£¨2£©µÎ¶¨¹ý³ÌÖУ¬NaHSO3ÈÜÒºµÄÌå»ýÊÇ20.00mL£¬ÏûºÄ0.100mol/LµÄËáÐÔKMnO4ÈÜÒº16.00mL£¬ÔòNaHSO3ÈÜÒºµÄÎïÖʵÄÁ¿Å¨¶ÈÊÇ mol/L¡£
£¨3£©ÏÂÁвÙ×÷»áµ¼Ö²ⶨ½á¹ûÆ«¸ßµÄÊÇ
E£®¹Û²ì¶ÁÊýʱ£¬µÎ¶¨Ç°ÑöÊÓ£¬µÎ¶¨ºó¸©ÊÓ
£¨1£©ÅäƽÀë×Ó·½³Ìʽ£º MnO4-+ HSO3-+ H+¡ª¡ª Mn2++ SO42-+ H2O
£¨2£©µÎ¶¨¹ý³ÌÖУ¬NaHSO3ÈÜÒºµÄÌå»ýÊÇ20.00mL£¬ÏûºÄ0.100mol/LµÄËáÐÔKMnO4ÈÜÒº16.00mL£¬ÔòNaHSO3ÈÜÒºµÄÎïÖʵÄÁ¿Å¨¶ÈÊÇ mol/L¡£
£¨3£©ÏÂÁвÙ×÷»áµ¼Ö²ⶨ½á¹ûÆ«¸ßµÄÊÇ
A£®Î´Óñê׼Ũ¶ÈµÄËáÐÔKMnO4ÈÜÒºÈóÏ´µÎ¶¨¹Ü |
B£®µÎ¶¨Ç°×¶ÐÎƿδ¸ÉÔï |
C£®µÎ¶¨Ç°µÎ¶¨¹Ü¼â×첿·ÖÓÐÆøÅÝ |
D£®²»Ð¡ÐĽ«ÉÙÁ¿ËáÐÔKMnO4ÈÜÒºµÎÔÚ׶ÐÎÆ¿Íâ |
£¨1£©2¡¢5¡¢1¡¢2¡¢5¡¢3 £¨2£©0.2000£»£¨3£©ACD
£¨1£©¸ù¾ÝÊغã¿ÉÒÔÅäƽ£¬2MnO4-+5HSO3-+H+==2Mn2++5SO42-+3H2O£»
£¨2£©n(NaHSO3)=2.5n(KMnO4)=2.5¡Á0.1¡Á0.016mol=0.004mol, C(NaHSO3)= 0.2000 mol/L;
(3) ACD
£¨2£©n(NaHSO3)=2.5n(KMnO4)=2.5¡Á0.1¡Á0.016mol=0.004mol, C(NaHSO3)= 0.2000 mol/L;
(3) ACD
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿