ij°àͬѧÍê³ÉÖÆÈ¡¶þÑõ»¯Ì¼µÄʵÑéºó£¬¶Ô»ØÊÕµÄÑÎËáºÍÂÈ»¯¸Æ»ìºÏÒº£¨²»¿¼ÂÇÆäËûÔÓÖÊ£©½øÐÐÈçÏÂʵÑ飺ȡһ¶¨Á¿¸Ã»ìºÏÒºÓÚÉÕ±­ÖУ¬µÎ¼Ó40gÈÜÖÊÖÊÁ¿·ÖÊýΪ10.6%µÄ̼ËáÄÆÈÜÒººó£¬³ÆµÃÉÕ±­ÄÚÈÜÒº×ÜÖÊÁ¿Îª68.5g¡£µÎÈë̼ËáÄÆÈÜÒºµÄÖÊÁ¿ÓëÉú³É³ÁµíÖÊÁ¿¹ØϵÈçͼËùʾ¡£

£¨1£©Ò»¿ªÊ¼Ã»ÓгÁµíÉú³ÉµÄÔ­ÒòÊÇ̼ËáÄÆÏÈÓëÑÎËá·´Ó¦£¬ÔòÓëÑÎËá·´Ó¦µÄ̼ËáÄÆÈÜÒºµÄÖÊÁ¿Îª          g£»

£¨2£©ÇóËùÈ¡ÈܺÏÈÜÒºÖÐÂÈ»¯¸ÆµÄÖÊÁ¿£»

£¨3£©ÇóÇ¡ºÃÍêÈ«·´Ó¦Ê±ÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý¡£

 

 £¨1£©10g  

£¨2£©ÉèÂÈ»¯¸ÆµÄÖÊÁ¿ÎªX

Na2CO3+ CaCl2=Ca CO3¡ý+ 2NaCl

       111     100

       X        2g

111/100=X/2g,½âµÃX=2.22g.

£¨3£©ÎÞÂÛ̼ËáÄƺÍÑÎËá·´Ó¦»¹ÊǺÍÂÈ»¯¸Æ·´Ó¦¶¼ÊÇÉú³ÉµÄÂÈ»¯ÄÆ£¬ËùÒÔ¸ù¾Ý¹²·´Ó¦µô40¿Ë̼ËáÄÆÈÜÒºÖ±½ÓÇóÉú³ÉÂÈ»¯ÄƵÄÖÊÁ¿£¬ÉèÂÈ»¯ÄƵÄÖÊÁ¿ÎªY£¬

Na2CO3-------2NaCl

106           117

40g*10.6%        Y

106/117=40g*10.6%/Y

½âµÃY=4.68¿Ë£¬×îÖÕÈÜÒºÖÊÁ¿Îª68.5g-2=66.5g

ÔòÇ¡ºÃÍêÈ«·´Ó¦Ê±ÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý4.68/66.5*100%=7%

д³ö̼ËáÄÆÓëÂÈ»¯¸Æ·´Ó¦µÄ»¯Ñ§·½³Ìʽ1·Ö£¨ÉÙ³Áµí·ûºÅÒ²¸ø·Ö£©£¬¸ñʽ¹æ·¶£¨º¬Éè¡¢´ð£¬²»¶à²»ÉÙg£¬±ÈÀýʽ£©1·Ö

½âÎö: £¨1£©ÓÉͼÏñ¿ÉÒÔ¿´³öÑÎËá·´Ó¦µÄ̼ËáÄÆÈÜÒºµÄÖÊÁ¿Îª10g

£¨2£©£¨3£©¸ù¾ÝÉú³É³Áµí2¿Ë£¬¼´¿ÉÇó³öÂÈ»¯¸ÆµÄÖÊÁ¿£¬ÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý¡£¾ßÌå²½Öè¼û´ð°¸¡£

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøij°àͬѧÍê³ÉÖÆÈ¡¶þÑõ»¯Ì¼µÄʵÑéºó£¬¶Ô»ØÊÕµÄÑÎËáºÍÂÈ»¯¸Æ»ìºÏÈÜÒº£¨²»¿¼ÂÇÆäËûÔÓÖÊ£©½øÐÐÁËÒÔÏÂʵÑ飺ȡ40mL¸ÃÈÜÒºÓÚÉÕ±­ÖУ¬µÎÈë40gÈÜÖÊÖÊÁ¿·ÖÊýΪ13.8%µÄK2CO3ÈÜÒº£®µÎÈëK2CO3ÈÜÒºÖÊÁ¿ÓëÉú³É³ÁµíÖÊÁ¿µÄ¹ØϵÈçͼËùʾ£®Çó£º
£¨1£©ËùÈ¡40mLÈÜÒºÖÐHClºÍCaCl2µÄÖÊÁ¿£®
£¨2£©ÊµÑé½áÊøºó£¬Èô½«ÉÕ±­ÖеÄÎïÖÊÕô¸É£¬µÃµ½¹ÌÌåµÄÖÊÁ¿£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøij°àͬѧÍê³ÉÖÆÈ¡¶þÑõ»¯Ì¼µÄʵÑéºó£¬¶Ô»ØÊÕµÄÑÎËáºÍÂÈ»¯¸Æ»ìºÏÒº£¨²»¿¼ÂÇÆäËûÔÓÖÊ£©½øÐÐÈçÏÂʵÑ飺ȡһ¶¨Á¿¸Ã»ìºÏÒºÓÚÉÕ±­ÖУ¬µÎ¼Ó40gÈÜÖÊÖÊÁ¿·ÖÊýΪ10.6%µÄ̼ËáÄÆÈÜÒººó£¬³ÆµÃÉÕ±­ÄÚÈÜÒº×ÜÖÊÁ¿Îª68.5g£®µÎÈë̼ËáÄÆÈÜÒºµÄÖÊÁ¿ÓëÉú³É³ÁµíÖÊÁ¿¹ØϵÈçͼËùʾ£®
£¨1£©Ò»¿ªÊ¼Ã»ÓгÁµíÉú³ÉµÄÔ­ÒòÊÇ̼ËáÄÆÏÈÓëÑÎËá·´Ó¦£¬ÔòÓëÑÎËá·´Ó¦µÄ̼ËáÄÆÈÜÒºµÄÖÊÁ¿Îª
 
 g£»
£¨2£©ÇóËùÈ¡ÈܺÏÈÜÒºÖÐÂÈ»¯¸ÆµÄÖÊÁ¿£»
£¨3£©ÇóÇ¡ºÃÍêÈ«·´Ó¦Ê±ÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøij°àͬѧÍê³ÉÖÆÈ¡¶þÑõ»¯Ì¼µÄʵÑéºó£¬¶Ô»ØÊÕµÄÑÎËáºÍÂÈ»¯¸Æ»ìºÏÈÜÒº£¨²»¿¼ÂÇÆäËûÔÓÖÊ£©½øÐÐÁËÒÔÏÂʵÑ飺ȡ40g¸ÃÈÜÒºÓÚÉÕ±­ÖУ¬µÎÈë40gÈÜÖÊÖÊÁ¿·ÖÊýΪ 13.8%µÄK2CO3ÈÜÒº£®µÎÈëK2CO3ÈÜÒºÖÊÁ¿ÓëÉú³É³ÁµíÖÊÁ¿µÄ¹ØϵÈçÈçͼËùʾ£®»Ø´ðÏÂÁÐÎÊÌ⣺£¨×îºó½á¹û±£Áô1λСÊý£©
£¨1£©
 
£¨¡°ÄÜ¡±»ò¡°²»ÄÜ¡±£©¼ÆËãÈÜÒºÖÐHClºÍCaCl2µÄÖÊÁ¿£®
£¨2£©ÇóÈÜÒºÖÐCaCl2µÄÖÊÁ¿£®
£¨3£©ÊµÑé½áÊøºó£¬Èô½«ÉÕ±­ÖеÄÎïÖÊÕô¸É£¬µÃµ½¹ÌÌåµÄÖÊÁ¿ÎªÊǶàÉÙ£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ij°àͬѧÍê³ÉÖÆÈ¡¶þÑõ»¯Ì¼µÄʵÑéºó£¬¶Ô»ØÊÕµÄÑÎËáºÍÂÈ»¯¸Æ»ìºÏÈÜÒº£¨²»¿¼ÂÇÆäËûÔÓÖÊ£©½øÐÐÁËÒÔÏÂʵÑ飺ȡ40mL¸ÃÈÜÒºÓÚÉÕ±­ÖУ¬µÎÈë40gÈÜÖÊÖÊÁ¿·ÖÊýΪ13.8%µÄK2CO3ÈÜÒº£®µÎÈëK2CO3ÈÜÒºÖÊÁ¿ÓëÉú³É³ÁµíÖÊÁ¿µÄ¹ØϵÈçÓÒͼËùʾ£®Çó£º
£¨1£©Éú³ÉµÄÆøÌåºÍ³ÁµíµÄÖÊÁ¿£®
£¨2£©ÊµÑé½áÊøºó£¬Èô½«ÉÕ±­ÖеÄÎïÖÊÕô¸É£¬µÃµ½ÎÞË®¹ÌÌåµÄÖÊÁ¿£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2011Äê½­ËÕÊ¡Õò½­ÊоäÈݶþÖÐÌáÇ°ÕÐÉú¿¼ÊÔ»¯Ñ§Ä£ÄâÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

£¨2006?±±¾©£©Ä³°àͬѧÍê³ÉÖÆÈ¡¶þÑõ»¯Ì¼µÄʵÑéºó£¬¶Ô»ØÊÕµÄÑÎËáºÍÂÈ»¯¸Æ»ìºÏÈÜÒº£¨²»¿¼ÂÇÆäËûÔÓÖÊ£©½øÐÐÁËÒÔÏÂʵÑ飺ȡ40mL¸ÃÈÜÒºÓÚÉÕ±­ÖУ¬µÎÈë40gÈÜÖÊÖÊÁ¿·ÖÊýΪ13.8%µÄK2CO3ÈÜÒº£®µÎÈëK2CO3ÈÜÒºÖÊÁ¿ÓëÉú³É³ÁµíÖÊÁ¿µÄ¹ØϵÈçͼËùʾ£®Çó£º
£¨1£©ËùÈ¡40mLÈÜÒºÖÐHClºÍCaCl2µÄÖÊÁ¿£®
£¨2£©ÊµÑé½áÊøºó£¬Èô½«ÉÕ±­ÖеÄÎïÖÊÕô¸É£¬µÃµ½¹ÌÌåµÄÖÊÁ¿£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸