ÌâÄ¿ÄÚÈÝ

ij»¯Ñ§ÐËȤС×éͬѧΪ²â¶¨Ã¾Í­ºÏ½ðÖÐþµÄÖÊÁ¿·ÖÊý£¬³ÆÈ¡3.0gºÏ½ðÑùÆ·£¬½«60.0gÏ¡ÁòËá·Ö6´Î¼ÓÈëÑùÆ·ÖУ¬³ä·Ö·´Ó¦ºó¹ýÂË¡¢Ï´µÓ¡¢¸ÉÔï¡¢³ÆÖØ£¬µÃµ½µÄʵÑéÊý¾ÝÈçÏ£®
Ï¡ÁòËáÓÃÁ¿ Ê£Óà¹ÌÌåÖÊÁ¿
µÚÒ»´Î¼ÓÈë10.0g m
µÚ¶þ´Î¼ÓÈë10.0g 2.0g
µÚÈý´Î¼ÓÈë10.0g 1.5g
µÚËĴμÓÈë10.0g 1.0g
µÚÎå´Î¼ÓÈë10.0g 0.6g
µÚÁù´Î¼ÓÈë10.0g 0.6g
£¨1£©²â¶¨¹ý³ÌÖз¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ
 
£®
£¨2£©±í¸ñÖУ¬m=
 
g£®
£¨3£©¸ÃþͭºÏ½ðÖÐþµÄÖÊÁ¿·ÖÊýΪ
 
£®
£¨4£©¼ÆËãËùÓÃÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®
 
£¨Çëд³ö¼ÆËã¹ý³Ì£¬½á¹û¾«È·µ½0.1%£©
·ÖÎö£º£¨1£©Êì¼Ç³£ÓõĻ¯Ñ§·½³Ìʽ¼´¿ÉÇáËÉ×÷´ð£®
£¨2£©¸ù¾Ý±í¸ñÖеÄÊý¾Ý¿É·ÖÎö³öÓë10¿ËÏ¡ÁòËáÇ¡ºÃÍêÈ«·´Ó¦µÄþµÄÖÊÁ¿£¬½ø¶ø¿ÉÈ·¶¨mµÄÖµ£®
£¨3£©·´Ó¦Ç°ºó¹ÌÌåÎïÖʼõÉÙµÄÖÊÁ¿ÎªÃ¾µÄÖÊÁ¿£¬¸ù¾Ý
þµÄÖÊÁ¿
þͭºÏ½ðµÄÖÊÁ¿
¡Á100
%Çó³öþͭºÏ½ðÖÐþµÄÖÊÁ¿·ÖÊý£®
£¨4£©¸ù¾Ý±í¸ñÖÐÊý¾Ý·ÖÎö¿ÉÖª10¿ËÏ¡ÁòËáÓë0.5¿ËþǡºÃÍêÈ«·´Ó¦£¬ÀûÓÃþÓëÁòËá·´Ó¦µÄ»¯Ñ§·½³Ìʽ£¬¸ù¾ÝþµÄÖÊÁ¿Çó³ö10¿ËÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿£¬È»ºó¸ù¾Ý
ÁòËáµÄÖÊÁ¿
Ï¡ÁòËáµÄÖÊÁ¿
¡Á100
%Çó³öÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®
½â´ð£º½â£º£¨1£©Ã¾ºÍÁòËá·´Ó¦Éú³ÉÁòËáþºÍÇâÆø£®
£¨2£©¸ù¾Ý±í¸ñÖеÄÊý¾Ý¿É·ÖÎö³ö10¿ËÏ¡ÁòËáÓë0.5¿ËþǡºÃÍêÈ«·´Ó¦£¬ÔòmµÄֵΪ2.5    
 £¨3£©Ã¾Í­ºÏ½ðÖÐþµÄÖÊÁ¿·ÖÊý=
3g-0.6g
3g
¡Á100
%=80%
£¨4£©Ã¿10.0gÏ¡ÁòËáÓë0.5gþǡºÃÍêÈ«·´Ó¦
Éè10.0gÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿Îªx
Mg+H2SO4¨TMgSO4+H2¡ü
24  98
0.5g x
24
0.5g
=
98
x

    x=2.04g
Ï¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý=
2.04g
10g
¡Á100
%=20.4%
¹Ê´ð°¸Îª£º£¨1£©Mg+H2SO4¨TMgSO4+H2¡ü
£¨2£©2.5
£¨3£©80%
£¨4£©20.4%
µãÆÀ£º±¾ÌâÊÇÒ»µÀÓйرí¸ñ·ÖÎöµÄ×ۺϼÆËãÌ⣬½â±¾ÌâµÄ¹Ø¼üÊǸù¾Ý±í¸ñÖеÄÊý¾Ý·ÖÎö³ö²Î¼Ó·´Ó¦µÄÁ½ÖÖÎïÖʵÄÖÊÁ¿¹Øϵ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø