ÌâÄ¿ÄÚÈÝ

£¨2012?»¨¶¼Çøһģ£©Çë»Ø´ðÏÂÁÐÓйء°×ß½øµÍ̼¡±µÄÎÊÌ⣺
£¨1£©ÒÔÏÂÊôÓÚ¡°²»¿É»ØÊÕÀ¬»ø¡±µÄÊÇ
¢Û
¢Û
£¨ÌîÐòºÅ£©£º
¢Ù·Ï×÷Òµ±¾  ¢Ú¿óȪˮƿ    ¢Ûù±äÃæ°ü     ¢ÜÆƾÉÌúÍ°
£¨2£©ÏÂÁзûºÏ¡°µÍ̼¡±ÀíÄîµÄ×îÇå½àȼÁÏÊÇ
¢Ü
¢Ü
£º
¢Ùú        ¢ÚÆûÓÍ        ¢ÛÌìÈ»Æø       ¢ÜÇâÆø
£¨3£©Ì¼ËáÄÆÈÜÒººÍÏ¡ÑÎËá¿ÉÒÔ·´Ó¦Éú³É¶þÑõ»¯Ì¼£®Îª²â¶¨Ä³Na2CO3ÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊý£¬ÏÖ³ÆÈ¡10g̼ËáÄÆÈÜÒº·ÅÔÚÉÕ±­Öв¢µÎÈëÏ¡ÑÎËᣬ²úÉúÆøÌåµÄÖÊÁ¿ÓëµÎÈëÏ¡ÑÎËáµÄÖÊÁ¿¹ØϵÈçͼËùʾ£¬ÊÔ¼ÆË㣺
¢Ù¶Áͼ¿ÉÖª£¬²úÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿Îª
2.2g
2.2g
£»
¢Ú¸ÃÈÜÒºÖÐ̼ËáÄƵÄÖÊÁ¿Îª
5.3
5.3
£¬ÖÊÁ¿·ÖÊýΪ
53%
53%
£»
¢ÛAµãʱ£¬ÉÕ±­ÄÚÈÜÒºÖÐÈÜÖʵĻ¯Ñ§Ê½
NaCl
NaCl
£®
·ÖÎö£º£¨1£©¢Ù·Ï×÷Òµ±¾  ¢Ú¿óȪˮƿ ¢ÜÆƾÉÌúÍ°£¬¶¼ÊÇ¿É»ØÊÕÀ¬»ø£»
£¨2£©¸ù¾ÝȼÉյIJúÎï·ÖÎö½âÌ⣻
£¨3£©¸ù¾ÝͼʾºÍ̼ËáÄÆÈÜÒººÍÏ¡ÑÎËá¿ÉÒÔ·´Ó¦µÄ»¯Ñ§Ê½½øÐмÆË㣮
½â´ð£º½â£º£¨1£©¢Ù·Ï×÷Òµ±¾  ¢Ú¿óȪˮƿ    ¢Ûù±äÃæ°ü     ¢ÜÆƾÉÌúÍ°ÖÐù±äÃæ°üÊôÓÚ²»¿É»ØÊÕÀ¬»ø£®
¹ÊÑ¡¢Û£»
£¨2£©¢Ùú¢ÚÆûÓÍ¢ÛÌìÈ»Æø£¬¶¼ÊÇ»¯Ê¯È¼ÉÕ£¬È¼ÉÕ»áÉú³ÉÓк¦ÎïÖÊ»òÎÂÊÒÆøÌ壬ֻÓÐÇâÆøȼÉÕÖ»Éú³ÉË®£¬²»»áÎÛȾ»·¾³£¬ÊÇ·ûºÏ¡°µÍ̼¡±ÀíÄîµÄ×îÇå½àÄÜÔ´£®
¹ÊÑ¡¢Ü£»
£¨3£©¢Ù¶Áͼ¿ÉÖª£¬²úÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿Îª2.2g£®
¹Ê´ð°¸Îª£º2.2g£»
¢ÚÉè¸ÃÈÜÒºÖÐ̼ËáÄƵÄÖÊÁ¿Îªx
Na2CO3+2HCl¨T2NaCl+H2O+CO2¡ü
106                    44
x                      2.2g
106
x
=
44
2.2g

x=5.3g
¸ÃÈÜÒºÖÐ̼ËáÄƵÄÖÊÁ¿·ÖÊýΪ£º
5.3
10
¡Á100%=53%
¹Ê´ð°¸Îª£º5.3g£»53%£®
¢ÛAµãʱǡºÃÍêÈ«·´Ó¦£¬ÔòÈÜÖÊÖ»º¬ÓÐÉú³ÉµÄÂÈ»¯ÄÆ£¬ËùÒÔÉÕ±­ÄÚÈÜÒºÖÐÈÜÖÊÊÇÂÈ»¯ÄÆ£»
¹Ê´ð°¸Îª£ºNaCl£®
µãÆÀ£º±¾Ì⿼²éÀ¬»øµÄÖÖÀà¡¢×îÇå½àµÄȼÁÏ¡¢»¯Ñ§·´Ó¦Ê½µÄ¼ÆËãµÈÎÊÌ⣬ÐèҪͬѧÃǵÄʶ¼ÇÄÜÁ¦ºÍ¹Û²ì¡¢¼ÆËãµÄÄÜÁ¦£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø