ÌâÄ¿ÄÚÈÝ

1£®È¡10g½ðÊôпÑùÆ·£¨¼ÙÉèÆäÖÐÔÓÖʺÍÁòËá²»·´Ó¦£¬Ò²²»ÈÜÓÚË®£©£¬¼ÓÈëµ½ÊÔ¹ÜÖУ¬ºÍ×ãÁ¿µÄÏ¡ÁòËá³ä·Ö·´Ó¦ºó£¬µÃµ½0.2gÇâÆø£®Çë»Ø´ðÏÂÁÐÎÊÌ⣮
£¨1£©Ð´³ö·¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌʽZn+H2SO4=ZnSO4+H2¡ü£»
£¨2£©Çó½â²Î¼Ó·´Ó¦µÄÁòËáÖÊÁ¿£¨X£©µÄ±ÈÀýʽΪ$\frac{98}{X}$=$\frac{2}{0.2g}$£»
£¨3£©Éú³ÉÁòËáпµÄÖÊÁ¿Îª16.1g£»
£¨4£©Ô­½ðÊôпÑùÆ·µÄ´¿¶È£¨Ð¿µÄÖÊÁ¿·ÖÊý£©Îª65%£®

·ÖÎö пÓëÁòËá·´Ó¦Éú³ÉÁòËáпºÍÇâÆø£¬¸ù¾ÝÉú³ÉÇâÆøµÄÖÊÁ¿Îª0.2g£¬½áºÏ·´Ó¦µÄ»¯Ñ§·½³Ìʽ£¬ÓɷųöÇâÆøµÄÖÊÁ¿¼ÆËãÑùÆ·ÖÐп¡¢ÁòËáµÄÖÊÁ¿ºÍÁòËáпµÄÖÊÁ¿£¬ÒÀ¾ÝпµÄÖÊÁ¿¼ÆËãпµÄÖÊÁ¿·ÖÊý£¬

½â´ð ½â£º£¨1£©Ð¿ÓëÁòËá·´Ó¦Éú³ÉÁòËáпºÍÇâÆø£¬·´Ó¦µÄ·½³ÌʽΪ£ºZn+H2SO4=ZnSO4+H2¡ü
£¨2£©Éè²Î¼Ó·´Ó¦µÄÁòËáÖÊÁ¿ÎªX£¬²Î¼Ó·´Ó¦µÄпÖÊÁ¿ÎªY£¬Éú³ÉÁòËáпµÄÖÊÁ¿ÎªZ
Zn+H2SO4=ZnSO4+H2¡ü
65   98   161  2
Y    X     Z  0.2g
$\frac{65}{Y}$=$\frac{98}{X}$=$\frac{161}{Z}$=$\frac{2}{0.2g}$
X=9.8g£¬Y=6.5g£¬Z=16.1g
£¨3£©Éú³ÉÁòËáпµÄÖÊÁ¿Îª16.1g
£¨4£©Ô­½ðÊôпÑùÆ·µÄ´¿¶ÈΪ$\frac{6.5g}{10g}$¡Á100%=65%
¹Ê´ð°¸Îª£º£¨1£©Zn+H2SO4=ZnSO4+H2¡ü
£¨2£©$\frac{98}{X}$=$\frac{2}{0.2g}$
£¨3£©16.1g
£¨4£©65%

µãÆÀ ±¾ÌâÖ÷Òª¿¼²éѧÉúÔËÓû¯Ñ§·½³Ìʽ½øÐмÆËãµÄÄÜÁ¦£®Ñ§ÉúÐèÈÏÕæ·ÖÎö·´Ó¦ÎïÖ®¼äµÄÊýÁ¿¹ØÏµ£¬²ÅÄÜÕýÈ·´ðÌ⣮

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø