ÌâÄ¿ÄÚÈÝ
£¨2013?³¤ÇåÇøһģ£©Îª²â¶¨Ä³³àÌú¿óʯÖÐÑõ»¯ÌúµÄÖÊÁ¿·ÖÊý£¬Ä³»¯Ñ§ÐËȤС×éµÄͬѧÓùýÁ¿µÄÒ»Ñõ»¯Ì¼Óë10g³àÌú¿óʯÑùÆ·³ä·Ö·´Ó¦£¨ÔÓÖʲ»²ÎÓë·´Ó¦£©£¬²¢½«Éú³ÉµÄÆøÌåÓÃ100gÇâÑõ»¯ÄÆÈÜҺǡºÃÍêÈ«ÎüÊÕ£¬Ðγɲ»±¥ºÍÈÜÒº£®¸ÃÈÜÒº×ÜÖÊÁ¿Ó뷴Ӧʱ¼äµÄ±ä»¯¹ØϵÈçͼ£®ÊÔ·ÖÎö½â´ð£º
£¨1£©³àÌú¿óʯÖÐËùº¬Ö÷ÒªÎïÖʵÄÑÕɫΪ£º
£¨2£©ÊµÑéÖжàÓàµÄÒ»Ñõ»¯Ì¼ÄÜ·ñÓÃË®ÎüÊÕ£¿
£¨3£©ÉÏÊö·´Ó¦ÖвúÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿Îª
£¨4£©¼ÆËãʵÑé½áÊøºóËùµÃ²»±¥ºÍÈÜÒºÖÐËùº¬ÈÜÖʵÄÖÊÁ¿£®
£¨1£©³àÌú¿óʯÖÐËùº¬Ö÷ÒªÎïÖʵÄÑÕɫΪ£º
ºìÉ«
ºìÉ«
£®£¨2£©ÊµÑéÖжàÓàµÄÒ»Ñõ»¯Ì¼ÄÜ·ñÓÃË®ÎüÊÕ£¿
²»ÄÜ
²»ÄÜ
£®£¨3£©ÉÏÊö·´Ó¦ÖвúÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿Îª
6.6
6.6
g£®£¨4£©¼ÆËãʵÑé½áÊøºóËùµÃ²»±¥ºÍÈÜÒºÖÐËùº¬ÈÜÖʵÄÖÊÁ¿£®
·ÖÎö£º£¨1£©ÒÀ¾ÝÑõ»¯ÌúµÄÑÕÉ«·ÖÎö½â´ð£»
£¨2£©¸ù¾ÝÒ»Ñõ»¯Ì¼µÄÈܽâÐÔ·ÖÎö½â´ð£»
£¨3£©¸ù¾Ý¶þÑõ»¯Ì¼ÓëÇâÑõ»¯ÄÆ·´Ó¦Ê±ÈÜÒºÔö¼ÓµÄÖÊÁ¿¼´²Î¼Ó·´Ó¦¶þÑõ»¯Ì¼µÄÖÊÁ¿·ÖÎö½â´ð£»
£¨4£©¸ù¾Ý¶þÑõ»¯Ì¼µÄÖÊÁ¿ÀûÓ÷´Ó¦µÄ·½³Ìʽ¼´¿É¼ÆËãÈÜÖÊ̼ËáÄƵÄÖÊÁ¿£»
£¨2£©¸ù¾ÝÒ»Ñõ»¯Ì¼µÄÈܽâÐÔ·ÖÎö½â´ð£»
£¨3£©¸ù¾Ý¶þÑõ»¯Ì¼ÓëÇâÑõ»¯ÄÆ·´Ó¦Ê±ÈÜÒºÔö¼ÓµÄÖÊÁ¿¼´²Î¼Ó·´Ó¦¶þÑõ»¯Ì¼µÄÖÊÁ¿·ÖÎö½â´ð£»
£¨4£©¸ù¾Ý¶þÑõ»¯Ì¼µÄÖÊÁ¿ÀûÓ÷´Ó¦µÄ·½³Ìʽ¼´¿É¼ÆËãÈÜÖÊ̼ËáÄƵÄÖÊÁ¿£»
½â´ð£º½â£º£¨1£©³àÌú¿óʯÖÐËùº¬Ö÷ÒªÎïÖÊÊÇÑõ»¯Ìú£¬ÑÕɫΪºìÉ«£»
£¨2£©Ò»Ñõ»¯Ì¼ÄÑÈÜÓÚË®ÇÒ²»ÄÜÓëË®·´Ó¦£¬ËùÒÔʵÑéÖжàÓàµÄÒ»Ñõ»¯Ì¼²»ÄÜÓÃË®ÎüÊÕ£»
£¨3£©¶þÑõ»¯Ì¼ÓëÇâÑõ»¯ÄÆ·´Ó¦ÄÜÉú³É̼ËáÄƺÍË®£¬ËùÒÔÈÜÒºÖÊÁ¿µÄÔö¼ÓÊÇ·´Ó¦µÄ¶þÑõ»¯Ì¼µ¼Öµģ¬ÓÉͼÏó¿ÉÖª·´Ó¦µÄ¶þÑõ»¯Ì¼ÖÊÁ¿ÊÇ106.6g-100.0g=6.6g£»
£¨4£©½â£ºÉèÉú³É̼ËáÄƵÄÖÊÁ¿Îªx
2NaOH+CO2¨TNa2CO3+H2O
44 106
6.6g x
=
x=15.9g
¹Ê´ð°¸Îª£º£¨1£©ºìÉ«£»£¨2£©²»ÄÜ£»£¨3£©6.6£»£¨4£©´ð£º´ËʱËùµÃ²»±¥ºÍÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿Îª15.9g£®
£¨2£©Ò»Ñõ»¯Ì¼ÄÑÈÜÓÚË®ÇÒ²»ÄÜÓëË®·´Ó¦£¬ËùÒÔʵÑéÖжàÓàµÄÒ»Ñõ»¯Ì¼²»ÄÜÓÃË®ÎüÊÕ£»
£¨3£©¶þÑõ»¯Ì¼ÓëÇâÑõ»¯ÄÆ·´Ó¦ÄÜÉú³É̼ËáÄƺÍË®£¬ËùÒÔÈÜÒºÖÊÁ¿µÄÔö¼ÓÊÇ·´Ó¦µÄ¶þÑõ»¯Ì¼µ¼Öµģ¬ÓÉͼÏó¿ÉÖª·´Ó¦µÄ¶þÑõ»¯Ì¼ÖÊÁ¿ÊÇ106.6g-100.0g=6.6g£»
£¨4£©½â£ºÉèÉú³É̼ËáÄƵÄÖÊÁ¿Îªx
2NaOH+CO2¨TNa2CO3+H2O
44 106
6.6g x
44 |
106 |
6.6g |
x |
x=15.9g
¹Ê´ð°¸Îª£º£¨1£©ºìÉ«£»£¨2£©²»ÄÜ£»£¨3£©6.6£»£¨4£©´ð£º´ËʱËùµÃ²»±¥ºÍÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿Îª15.9g£®
µãÆÀ£º·ÖÎöͼ±íÖÐÊý¾Ýʱ£¬Òª¹Ø×¢Ôì³ÉÊý¾Ý·¢Éú±ä»¯µÄÔÒò£¬·ÖÎöÊý¾Ý²»ÔٸıäʱËù˵Ã÷µÄÎÊÌ⣬´Ó¶ø·¢ÏÖÒþº¬Ìõ¼þ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿