ÌâÄ¿ÄÚÈÝ

9£®Ä³ÑùƷΪCuºÍCuOµÄ»ìºÏÎΪ²â¶¨ÑùÆ·ÖÐCuOµÄº¬Á¿£¬¼×¡¢ÒÒ¡¢±û¡¢¶¡ËÄλѧÉúÓÃͬһÖÖÑùÆ··Ö±ð½øÐÐʵÑ飬²âµÃµÄÊý¾ÝÈçÏÂ±í£º
ѧÉú
ÎïÖÊÖÊÁ¿
¼×ÒÒ±û¶¡
ËùÈ¡¹ÌÌåÑùÆ·µÄÖÊÁ¿£¨g£©30252020
¼ÓÈëÁòËáÈÜÒºµÄÖÊÁ¿£¨g£©100100100120
·´Ó¦ºóÊ£Óà¹ÌÌåµÄÖÊÁ¿£¨g£©22171212
·ÖÎöʵÑéÊý¾Ý£¬»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©Çó»ìºÏÎïÖÐÑõ»¯Í­µÄÖÊÁ¿·ÖÊý£®
£¨2£©ÇóÁòËáÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®
£¨3£©Çó¶¡Í¬Ñ§ÊµÑé·´Ó¦ËùµÃÁòËáÍ­ÈÜÒºµÄÖÊÁ¿·ÖÊý£®

·ÖÎö ¸ù¾Ý½ðÊô»î¶¯ÐÔÍ­»î¶¯ÐÔ´¦ÓÚHÖ®ºó£¬²»ÄÜÓëÏ¡ÁòËá·´Ó¦£¬Òò´ËÍ­ºÍÑõ»¯Í­µÄ»ìºÏÎï¼ÓÈëÏ¡ÁòËᣬֻÓÐÑõ»¯Í­ÓëÁòËá·¢Éú·´Ó¦£»·ÖÎö±íÖÐÊý¾ÝÕÒ³öÇ¡ºÃÍêÈ«·´Ó¦µÄʵÑéÊý¾Ý½øÐмÆË㣮

½â´ð ½â£ºÓɱíÖÐÊý¾Ý¶Ô±È·ÖÎö£º±ûÖз´Ó¦Ç°¹ÌÌåÊÇ20g£¬·´Ó¦ºó¹ÌÌåÊÇ12g£¬¹Ê·´Ó¦µÄÑõ»¯Í­ÖÊÁ¿Îª8g£¬Óɶ¡ºÍ±û¶Ô±È£¬¹ÌÌå»ìºÏÎïÏàͬ£¬ËáÓÉ100gÔö¼Óµ½120g£¬·´Ó¦µôµÄÑõ»¯Í­ÈÔΪ8g£¬ËµÃ÷20g»ìºÏÎïÖÐÖ»º¬8gÑõ»¯Í­£®ÓÉÒÒ±û¶Ô±È¹ÌÌå»ìºÏÎïÖÊÁ¿²»Í¬£¬ËáÏàͬ£¬¶ø·´Ó¦µôµÄÑõ»¯Í­Ïàͬ¶¼ÊÇ8g£¬ËµÃ÷25g»ìºÏÎïÖеÄÑõ»¯Í­Ã»ÓÐÈ«²¿·´Ó¦£¬¼´100gÏ¡ÁòËáÄÜÓë20g»ìºÏÎïÖеÄ8gÑõ»¯Í­Ç¡ºÃÍêÈ«·´Ó¦£®ËùÒÔ¼×ÒÒÁ½Í¬Ñ§ÁòËáÁ¿²»×㣬±ûͬѧǡºÃÍêÈ«·´Ó¦£¬¶¡Í¬Ñ§ËáÊ£Ó࣮
£¨1£©±ûͬѧµÄʵÑéÖУ¬»ìºÏÎïΪ20g£¬Ê£Óà¹ÌÌåΪ12g£¬ËùÒÔÑùÆ·ÖÐÓÐ8gµÄÑõ»¯Í­²Î¼ÓÁË·´Ó¦£»
»ìºÏÎïÖÐÑõ»¯Í­µÄÖÊÁ¿·ÖÊý=$\frac{8g}{20g}$¡Á100%=40%
£¨2£©Éè²Î¼Ó·´Ó¦µÄÁòËáÖÊÁ¿Îªx
CuO+H2SO4¨TCuSO4+H2O
80     98
8g      x
$\frac{80}{8g}=\frac{98}{x}$
x=9.8g
ÁòËáµÄÖÊÁ¿·ÖÊý£º$\frac{9.8g}{100}$¡Á100%=9.8%
£¨3£©ÉèÉú³ÉÁòËáÍ­µÄÖÊÁ¿Îªy
CuO+H2SO4¨TCuSO4+H2O
80                 160
8g                    y
$\frac{80}{8g}=\frac{160}{y}$
y=16g
¶¡Í¬Ñ§ÊµÑé·´Ó¦ËùµÃÁòËáÍ­ÈÜÒºµÄÖÊÁ¿·ÖÊýΪ£º$\frac{16g}{8g+120g}$¡Á100%=12.5%
´ð£º£¨1£©ÑùÆ·ÖÐÑõ»¯Í­µÄÖÊÁ¿·ÖÊýΪ40%£»
£¨2£©ÁòËáÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ9.8%£»
£¨3£©¶¡Í¬Ñ§ÊµÑé·´Ó¦ËùµÃÁòËáÍ­ÈÜÒºµÄÖÊÁ¿·ÖÊýΪ12.5%£®

µãÆÀ ±¾ÌâÖ÷Òª¿¼²éº¬ÔÓÖÊÎïÖʵĻ¯Ñ§·½³Ìʽ¼ÆËãºÍÈÜÖÊÖÊÁ¿·ÖÊýµÄ¼ÆË㣬ÄѶȽϴó£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø