ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³Ñ§Ð£»¯Ñ§ÊµÑéÊÒÓÐÒ»±º¬ÑÎËáºÍÂÈ»¯ÍµÄ·ÏÒº£¬¸ÃУ»¯Ñ§ÐËȤС×éµÄͬѧȡ109.8g·ÏÒºÓÚÉÕ±ÖУ¬ÏòÆäÖÐÖðµÎ¼ÓÈëÒ»¶¨ÈÜÖÊÖÊÁ¿·ÖÊýµÄÇâÑõ»¯ÄÆÈÜÒº£¬Ëù¼ÓÇâÑõ»¯ÄÆÈÜÒºÓëÉú³É³ÁµíµÄÖÊÁ¿¹ØϵÈçͼËùʾ£º
ÊÔ¼ÆË㣺
£¨1£©²úÉú³ÁµíµÄ×ÜÖÊÁ¿ÊÇ_____¿Ë£»
£¨2£©109.8g·ÏÒºÖÐÂÈ»¯ÍµÄÖÊÁ¿ÊÇ_____¿Ë¡£
£¨3£©¼ÆËã¼ÓÈë100gÇâÑõ»¯ÄÆÈÜÒº²¢³ä·Ö·´Ó¦ºóÉÕ±ÄÚËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý¡£
¡¾´ð°¸¡¿£¨1£©9.8£»£¨2£©13.5£»£¨3£©11.7%
¡¾½âÎö¡¿
£¨1£©ÓÉͼ¿ÉÖª£¬²úÉú³ÁµíµÄ×ÜÖÊÁ¿ÊÇ9.8g£»
£¨2£©½â£ºÉè109.8g·ÏÒºÖÐÂÈ»¯ÍµÄÖÊÁ¿ÊÇx£¬ÇâÑõ»¯ÄÆÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýÊÇy£¬·´Ó¦Éú³ÉÂÈ»¯ÄƵÄÖÊÁ¿Îªz
x=13.5g
y=16%
z=11.7g
£¨3£©½â£ºÉèÇâÑõ»¯ÄÆÓëÏ¡ÑÎËá·´Ó¦Éú³ÉÂÈ»¯ÄƵÄÖÊÁ¿Îªm
m=11.7g
¼ÓÈë100gÇâÑõ»¯ÄÆÈÜÒº²¢³ä·Ö·´Ó¦ºóÉÕ±ÄÚËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ£º ¡£
´ð£º£¨1£©²úÉú³ÁµíµÄ×ÜÖÊÁ¿ÊÇ9.8¿Ë£»
£¨2£©109.8g·ÏÒºÖÐÂÈ»¯ÍµÄÖÊÁ¿ÊÇ13.5¿Ë¡£
£¨3£©¼ÓÈë100gÇâÑõ»¯ÄÆÈÜÒº²¢³ä·Ö·´Ó¦ºóÉÕ±ÄÚËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ11.7%¡£
¡¾ÌâÄ¿¡¿½«Ò»¶¨ÖÊÁ¿µÄ¼×´¼£¨CH3OH£©ºÍÑõÆø£¨O2£©ÖÃÓÚÃܱÕÈÝÆ÷Öеãȼ£¬Ò»¶Îʱ¼äºó·´Ó¦Í£Ö¹£¬²âµÃ·´Ó¦ºó¸÷ÎïÖʵÄÖÊÁ¿£¬Ïà¹ØÊý¾ÝÈçϱíËùʾ¡£ÏÂÁÐ˵·¨²»·ûºÏÊÂʵµÄÊÇ
ÎïÖÊ | CH3OH | O2 | H2O | CO2 | X |
·´Ó¦Ç°ÖÊÁ¿/g | m | 12.8 | 0 | 0 | 0 |
·´Ó¦ºóÖÊÁ¿/g | 0 | 0 | 10.8 | 8.8 | n |
A.m>n
B.XÖÐÒ»¶¨º¬ÓÐ̼ԪËØ
C.ÎÞ·¨ÅжÏXÖÐÊÇ·ñº¬ÓÐÑõÔªËØ
D.Éú³ÉÎïÖÐC¡¢HÁ½ÖÖÔªËصÄÖÊÁ¿±ÈΪ3¡Ã1