ÌâÄ¿ÄÚÈÝ
ijУ¡°ËáÓꡱ£¨pH£¼5.6£©²âÁ¿Ð¡×éµÄͬѧ£¬È¡¸Õ½µÂäÓêË®µÄË®Ñù£¬ÓÃpH̽ͷ£¨²âpHµÄÒÇÆ÷£©Ã¿¸ô¼¸·ÖÖÓ²âÒ»´ÎpH£¬ÆäÊý¾ÝÈçÏ£º
²â¶¨Ê±¿Ì | 5£º05 | 5£º10 | 5£º15 | 5£º20 | 5£º25 | 5£º30 | 5£º35 |
PH | 4.95 | 4.94 | 4.94 | 4.88 | 4.86 | 4.85 | 4.85 |
£¨2£©¸ù¾ÝÒÔÉÏÊý¾Ý£¬ÅжÏËù½µÓêË®ÊÇ·ñΪ¡°ËáÓꡱ£¨ÌîÊÇ»ò·ñ£©________£»
£¨3£©¾µ÷²é£¬ÕâÒ»µØÇøÓÐÒ»¸öÁòË᳧£¨Éú²ú¹ý³Ì²úÉúSO2£©ºÍÒ»¸öµç¶Æ³§£¬ÕâЩ³§Ê¹ÓõÄȼÁÏÖ÷ÒªÊÇú£®ÊÔ·ÖÎöÔì³ÉÕâÒ»µØÇøËáÓêµÄÖ÷ÒªÔÒòÊÇ________£®
£¨4£©¹¤ÒµÉÏ£¬³£ÓÃ________³ýȥβÆøÖеÄSO2£¬ÆäÔÀíÓû¯Ñ§·½³Ìʽ±íʾΪ________£®
½â£º£¨1£©¶þÑõ»¯Ì¼ÄÜÓëË®·´Ó¦Éú³É̼Ëᣬ̼Ëá³ÊËáÐÔ£¬¹ÊÌ¿ÕÆøÖк¬ÓжþÑõ»¯Ì¼£¬ÈÜÓÚÓêË®£¬Òò´ËÓêË®³ÊËáÐÔ£»
£¨2£©ÊǸÃÓêË®µÄpH£¼5.6£¬ÊôÓÚËáÓ꣬¹ÊÌÊÇ£»
£¨3£©ÃºÖк¬ÓеÄÁòÔªËØ»áת»¯Éú³É¶þÑõ»¯Áò£¬ÁòË᳧Éú²ú¹ý³Ì²úÉúSO2£¬¶þÑõ»¯ÁòÄÜÓëË®·´Ó¦Éú³ÉÑÇÁòËᣬÐγÉËáÓ꣬¹ÊÌÁòË᳧Éú²ú¹ý³Ì²úÉúµÄSO2ºÍµç¶Æ³§ÃºÈ¼ÉÕÒ²Éú³ÉSO2£»£¨4£©¶þÑõ»¯ÁòÄÜÓëÇâÑõ»¯ÄÆ·´Ó¦Éú³ÉÑÇÁòËáÄƺÍË®£¬´Ó¶ø³ýÈ¥¶þÑõ»¯Áò£¬¹ÊÌÇâÑõ»¯ÄÆ£¬2NaOH+SO2=Na2SO3+H2O£®
·ÖÎö£º¸ù¾ÝÒÑÓеÄ֪ʶ½øÐзÖÎö£¬ÈÜÒºµÄpHСÓÚ7£¬ÈÜÒº³ÊËáÐÔ£¬¶þÑõ»¯Ì¼ÄÜÓëË®·´Ó¦Éú³É̼ËᣬËáÓêÊÇÖ¸pH£¼5.6µÄÓêË®£¬ÃºÖк¬ÓеÄÁòÔªËØ»áת»¯Éú³É¶þÑõ»¯Áò£¬¶þÑõ»¯ÁòÄÜÓëÇâÑõ»¯ÄÆ·´Ó¦Éú³ÉÑÇÁòËáÄƺÍË®£®
µãÆÀ£º±¾Ì⿼²éÁËÈÜÒºµÄËá¼îÐÔÓëpHµÄ¹Øϵ£¬Íê³É´ËÌ⣬¿ÉÒÔÒÀ¾ÝÒÑÓеÄ֪ʶ½øÐУ®ÒªÇóͬѧÃÇÊìÁ·ÕÆÎÕÓйØÎïÖʵÄÐÔÖÊ£¬ÒÔ±ãÁé»îÓ¦Óã®
£¨2£©ÊǸÃÓêË®µÄpH£¼5.6£¬ÊôÓÚËáÓ꣬¹ÊÌÊÇ£»
£¨3£©ÃºÖк¬ÓеÄÁòÔªËØ»áת»¯Éú³É¶þÑõ»¯Áò£¬ÁòË᳧Éú²ú¹ý³Ì²úÉúSO2£¬¶þÑõ»¯ÁòÄÜÓëË®·´Ó¦Éú³ÉÑÇÁòËᣬÐγÉËáÓ꣬¹ÊÌÁòË᳧Éú²ú¹ý³Ì²úÉúµÄSO2ºÍµç¶Æ³§ÃºÈ¼ÉÕÒ²Éú³ÉSO2£»£¨4£©¶þÑõ»¯ÁòÄÜÓëÇâÑõ»¯ÄÆ·´Ó¦Éú³ÉÑÇÁòËáÄƺÍË®£¬´Ó¶ø³ýÈ¥¶þÑõ»¯Áò£¬¹ÊÌÇâÑõ»¯ÄÆ£¬2NaOH+SO2=Na2SO3+H2O£®
·ÖÎö£º¸ù¾ÝÒÑÓеÄ֪ʶ½øÐзÖÎö£¬ÈÜÒºµÄpHСÓÚ7£¬ÈÜÒº³ÊËáÐÔ£¬¶þÑõ»¯Ì¼ÄÜÓëË®·´Ó¦Éú³É̼ËᣬËáÓêÊÇÖ¸pH£¼5.6µÄÓêË®£¬ÃºÖк¬ÓеÄÁòÔªËØ»áת»¯Éú³É¶þÑõ»¯Áò£¬¶þÑõ»¯ÁòÄÜÓëÇâÑõ»¯ÄÆ·´Ó¦Éú³ÉÑÇÁòËáÄƺÍË®£®
µãÆÀ£º±¾Ì⿼²éÁËÈÜÒºµÄËá¼îÐÔÓëpHµÄ¹Øϵ£¬Íê³É´ËÌ⣬¿ÉÒÔÒÀ¾ÝÒÑÓеÄ֪ʶ½øÐУ®ÒªÇóͬѧÃÇÊìÁ·ÕÆÎÕÓйØÎïÖʵÄÐÔÖÊ£¬ÒÔ±ãÁé»îÓ¦Óã®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿