ÌâÄ¿ÄÚÈÝ
ÈÃÎÒÃÇÓëСËÉͬѧһÆð²ÎÓëÒÔÏÂ̽¾¿£º£¨1£©Cu-AlºÍCu-AgºÏ½ðÍâ¹ÛÏàËÆ£¬Ð¡ËÉÈÏΪֻҪµÎ¼¸µÎÏ¡ÁòËá¾Í¿ÉÒÔ½«ÕâÁ½ÖֺϽð¼ø±ð³öÀ´£®ÄãÊÇ·ñͬÒâСËɵĿ´·¨£¿
£¨2£©Ð¡ËÉÈÏΪֻʹÓÃAgNO3ÈÜÒº£¬¾Í¿É²â¶¨ÉÏÊö
£¨3£©Ð¡ËÉÈÏΪ»¹¿É²â³öAgNO3ÈÜÒºµÄÖÊÁ¿·ÖÊý£¬ÓÚÊǽøÐÐÁ˶à´ÎʵÑ飬¼Ç¼ÁËÿ´ÎʹÓõÄAgNO3ÈÜÒºÖÊÁ¿mxºÍ³ä·Ö·´Ó¦ËùµÃ¹ÌÌåÖÊÁ¿my£¬²¢»æÖÆÁËÓÒͼ£¬ÔòAgNO3ÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýÊÇ
·ÖÎö£º£¨1£©ÒòΪ Cu Ag²»ÓëÑÎËá·´Ó¦£¬AlÄÜÓëÑÎËá·´Ó¦£¬ËùÒԵμÓÑÎËáºóCu-AlºÏ½ð»áÓëÑÎËá·´Ó¦£®
£¨2£©Ê×ÏȶԺϽðµÄÀàÐͽøÐÐÅжϣ¬ÔÙÀûÓÃÎïÖÊ·´Ó¦Ê±Á¿µÄ¹Øϵ½øÐзÖÎö̽ÌÖ½â¾ö£¬Ê×ÏÈÀûÓ÷½³Ìʽȷ¶¨ÍÓëÒøµÄ¹Øϵ£¬ÔÙÀûÓúϽðµÄÖÊÁ¿Áгö¹ØϵʽÇó³öÖÊÁ¿±È£®
£¨3£©·ÖÎöͼÏóÖªÍêÈ«·´Ó¦Ê±ÏõËáÒøÈÜÒºµÄÖÊÁ¿ÊÇ100g£¬ÀûÓúϽðÖеÄÖÊÁ¿±ÈÇó³ö͵ÄÖÊÁ¿£¬ÔÙÀûÓû¯Ñ§·½³ÌʽÇó½â¼´¿É£®
£¨2£©Ê×ÏȶԺϽðµÄÀàÐͽøÐÐÅжϣ¬ÔÙÀûÓÃÎïÖÊ·´Ó¦Ê±Á¿µÄ¹Øϵ½øÐзÖÎö̽ÌÖ½â¾ö£¬Ê×ÏÈÀûÓ÷½³Ìʽȷ¶¨ÍÓëÒøµÄ¹Øϵ£¬ÔÙÀûÓúϽðµÄÖÊÁ¿Áгö¹ØϵʽÇó³öÖÊÁ¿±È£®
£¨3£©·ÖÎöͼÏóÖªÍêÈ«·´Ó¦Ê±ÏõËáÒøÈÜÒºµÄÖÊÁ¿ÊÇ100g£¬ÀûÓúϽðÖеÄÖÊÁ¿±ÈÇó³ö͵ÄÖÊÁ¿£¬ÔÙÀûÓû¯Ñ§·½³ÌʽÇó½â¼´¿É£®
½â´ð£º½â£º£¨1£©Cu Ag²»ÓëÑÎËá·´Ó¦£¬AlÄÜÓëÑÎËá·´Ó¦£¬ËùÒԵμÓÑÎËáºóCu-AlºÏ½ð»áÓëÑÎËá·´Ó¦£»
¹Ê´ð°¸Îª£ºÍ¬Òâ
£¨2£©Í¡¢ÂÁ¶¼ÄÜÓëÏõËáÒø·´Ó¦£¬¹Ê²»ÄܲⶨºÏ½ðÖÐÁ½ÖÖ½ðÊôµÄÖÊÁ¿±È¶øÍÒøºÏ½ðÖÐÖ»ÓÐÍÓëÏõËáÒø·´Ó¦¿É²â¶¨ºÏ½ðÖÐÁ½ÖÖ½ðÊôµÄÖÊÁ¿±È£¬ÓÉ´Ë·ÖÎöÖªµÀ¸ÃºÏ½ðÊÇÍÒøºÏ½ð£®¹Ê´ð°¸Îª£ºCu-Ag
½â£ºÉèºÏ½ðÖÐÒøµÄÖÊÁ¿ÎªX
Cu+2AgNO3¨TCu£¨NO3£©2+2Ag
64 216
9.6g-X 17.2g-X
=
X=6.4g
ͺÍÒøµÄÖÊÁ¿±ÈΪ£¨9.6-6.4£©g£º6.4g=1£º2
´ð£º¸ÃºÏ½ðÖÐͺÍÒøµÄÖÊÁ¿±ÈΪ1£º2
£¨3£©½â£ºÉè²ÎÓë·´Ó¦µÄÏõËáÒøµÄÖÊÁ¿Îªy
Cu+2AgNO3¨TCu£¨NO3£©2+2Ag
64 340
3.2g y
=
y=17g
ÏõËáÒøÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýΪ
¡Á100%=17%
´ð£ºÏõËáÒøÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýΪ17%
¹Ê´ð°¸Îª£º17%
¹Ê´ð°¸Îª£ºÍ¬Òâ
£¨2£©Í¡¢ÂÁ¶¼ÄÜÓëÏõËáÒø·´Ó¦£¬¹Ê²»ÄܲⶨºÏ½ðÖÐÁ½ÖÖ½ðÊôµÄÖÊÁ¿±È¶øÍÒøºÏ½ðÖÐÖ»ÓÐÍÓëÏõËáÒø·´Ó¦¿É²â¶¨ºÏ½ðÖÐÁ½ÖÖ½ðÊôµÄÖÊÁ¿±È£¬ÓÉ´Ë·ÖÎöÖªµÀ¸ÃºÏ½ðÊÇÍÒøºÏ½ð£®¹Ê´ð°¸Îª£ºCu-Ag
½â£ºÉèºÏ½ðÖÐÒøµÄÖÊÁ¿ÎªX
Cu+2AgNO3¨TCu£¨NO3£©2+2Ag
64 216
9.6g-X 17.2g-X
64 |
9.6g-x |
216 |
17.2g-x |
X=6.4g
ͺÍÒøµÄÖÊÁ¿±ÈΪ£¨9.6-6.4£©g£º6.4g=1£º2
´ð£º¸ÃºÏ½ðÖÐͺÍÒøµÄÖÊÁ¿±ÈΪ1£º2
£¨3£©½â£ºÉè²ÎÓë·´Ó¦µÄÏõËáÒøµÄÖÊÁ¿Îªy
Cu+2AgNO3¨TCu£¨NO3£©2+2Ag
64 340
3.2g y
64 |
3.2g |
340 |
y |
y=17g
ÏõËáÒøÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýΪ
17g |
100g |
´ð£ºÏõËáÒøÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýΪ17%
¹Ê´ð°¸Îª£º17%
µãÆÀ£º´ËÌâÊôÒ»µÀ×ۺϼÆËãÌ⣬Éæ¼°µ½»¯Ñ§·½³Ìʽ¼°ÈÜÒºµÄ¼ÆË㣬½âÌâµÄ¹Ø¼üÊǶÔÎÊÌâ½øÐÐÉîÈëµÄ̽ÌÖÓë·ÖÎö£¬´Ó¶øÈ·¶¨·´Ó¦Ê±Á¿µÄ¹Øϵ£¬´ÓÄѶÈÉϽ²Ó¦¸ÃÊôÓÚ¾ºÈüÌâϵÁУ®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿