ÌâÄ¿ÄÚÈÝ

6£®Ð¡ÀîÒª²â¶¨Ä³Cu-ZnºÏ½ðÖÐÍ­µÄÖÊÁ¿·ÖÊý£¬×öÁËÈçÏÂʵÑ飮
£¨1£©Á¿Í²Á¿È¡10.9mL 98%ŨÁòËᣨÃܶÈΪ1.84g/mL£©Åä³É100g 19.6%µÄÏ¡ÁòËᣮ
£¨2£©½«ÉÏÊöÅä³ÉµÄÏ¡ÁòËáÈ«²¿¼ÓÈëÊ¢ÓÐ10gºÏ½ðÑù
Æ·µÄÉÕ±­ÖУ¬·´Ó¦¹ý³ÌÓþ«ÃÜÒÇÆ÷²âµÃÉÕ±­Á¬Í¬Ò©Æ·µÄ×ÜÖÊÁ¿£¨m£©Ó뷴Ӧʱ
¼ä£¨t£©µÄ¹ØÏµÈçͼËùʾ£®
¢Ù²úÉúÇâÆøÖÊÁ¿Îª0.2g£®
¢Ú¸ÃºÏ½ðÑùÆ·ÖÐÍ­µÄÖÊÁ¿·ÖÊýΪ35%£®
¢Û·´Ó¦ºóËùµÃÈÜÒºÖÐÁòËáпµÄÖÊÁ¿·ÖÊý£®£¨Ð´³ö½â´ð¹ý³Ì£¬¾«È·µ½0.1%£©

·ÖÎö ÈÜҺϡÊÍǰºó£¬ÈÜÖÊÖÊÁ¿²»±ä£»
пºÍÏ¡ÁòËá·´Ó¦Éú³ÉÁòËáпºÍÇâÆø£¬¸ù¾Ý·´Ó¦µÄ»¯Ñ§·½³ÌʽºÍÌṩµÄÊý¾Ý¿ÉÒÔ½øÐÐÏà¹Ø·½ÃæµÄ¼ÆË㣮

½â´ð ½â£º£¨1£©ÉèÐèҪŨÁòËáÌå»ýΪx£¬
x¡Á1.84g/mL¡Á98%=100g¡Á19.6%£¬
x=10.9mL£®
¹ÊÌ10.9£®
£¨2£©·´Ó¦Éú³ÉÇâÆøÖÊÁ¿Îª£º160.0g-159.8g=0.2g£¬
ÉèпµÄÖÊÁ¿Îªy£¬Éú³ÉÁòËáпÖÊÁ¿Îªz£¬
Zn+H2SO4¨TZnSO4+H2¡ü£¬
65        161   2
y          z   0.2g
$\frac{65}{y}$=$\frac{161}{z}$=$\frac{2}{0.2g}$£¬
y=6.5g£¬z=16.1g£¬
¸ÃºÏ½ðÑùÆ·ÖÐÍ­µÄÖÊÁ¿·ÖÊýΪ£º$\frac{10g-6.5g}{10g}$¡Á100%=35%£¬
¹ÊÌ0.2£»35%£®
·´Ó¦ºóËùµÃÈÜÒºÖÐÁòËáпµÄÖÊÁ¿·ÖÊýΪ£º$\frac{16.1g}{100g+6.5g-0.2g}$¡Á100%=15.1%£¬
´ð£º·´Ó¦ºóËùµÃÈÜÒºÖÐÁòËáпµÄÖÊÁ¿·ÖÊýΪ15.1%£®

µãÆÀ ±¾ÌâÖ÷Òª¿¼²éѧÉúÔËÓüÙÉè·¨ºÍ»¯Ñ§·½³Ìʽ½øÐмÆËãºÍÍÆ¶ÏµÄÄÜÁ¦£¬Í¬Ê±¿¼²éÁË·ÖÎöÊý¾ÝµÄÄÜÁ¦£¬¼ÆËãʱҪעÒâ¹æ·¶ÐÔºÍ׼ȷÐÔ£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø