ÌâÄ¿ÄÚÈÝ
Ag-ZnºÏ½ð¿ÉÓÃÓÚ¹¤ÒÕÆ·µÄÖÆ×÷£¬Ä³»¯Ñ§ÐËȤС×éµÄͬѧΪÁ˲ⶨijÒøпºÏ½ðµÄ×é³É£¬È¡20gÑùÆ·ÓÚÉÕ±ÖУ¬ÏòÆäÖзÖ5´Î¼ÓÏàͬÖÊÁ¿·ÖÊýµÄÏ¡ÁòËᣬʹ֮³ä·Ö·´Ó¦£¬Ã¿´ÎËùÓÃÏ¡ÁòËáµÄÖÊÁ¿¾ùΪ20g£¬Ê£Óà¹ÌÌåµÄÖÊÁ¿¼Ç¼ÓÚÏÂ±í£º
Çë¼ÆË㣺£¨1£©¸ÃÑùÆ·ÖÐÒøµÄÖÊÁ¿Îª £®
£¨2£©ËùÓÃÏ¡ÁòËáÈÜÖʵÄÖÊÁ¿·ÖÊý£®
ʵÑé´ÎÊý | µÚ1´Î | µÚ2´Î | µÚ3´Î | µÚ4´Î | µÚ5´Î |
·´Ó¦ºóÊ£Óà¹ÌÌåµÄÖÊÁ¿£¨g£© | 17.4 | 14.8 | 12.2 | 10.8 | 10.8 |
£¨2£©ËùÓÃÏ¡ÁòËáÈÜÖʵÄÖÊÁ¿·ÖÊý£®
¿¼µã£º¸ù¾Ý»¯Ñ§·´Ó¦·½³ÌʽµÄ¼ÆËã,ÓйØÈÜÖÊÖÊÁ¿·ÖÊýµÄ¼òµ¥¼ÆËã
רÌ⣺×ۺϼÆË㣨ͼÏñÐÍ¡¢±í¸ñÐÍ¡¢Çé¾°ÐͼÆËãÌ⣩
·ÖÎö£ºÓɱí¸ñÖеÄÊý¾Ý¿É¿´³ö£¬Ç°Èý´ÎʵÑé¹ÌÌåÖÊÁ¿µÄ¼õÉÙÁ¿ÊÇÏàͬµÄ£¬¶øµÚËĴεĹÌÌå¼õÉÙÁ¿±ÈÇ°Èý´ÎÉÙ£¬ËµÃ÷µÚËÄ´ÎʵÑéʱпÒѾÍêÈ«·´Ó¦£¬ËùÒÔ²»ÄÜÓõÚËĴκ͵ÚÈý´ÎʵÑé¹ÌÌåÖÊÁ¿µÄ²îÖµÀ´¼ÆË㣮
½â´ð£º½â£º£¨1£©ÓÉÓÚAg-ZnºÏ½ðÖÐÖ»ÓÐZnºÍÏ¡ÁòËá·´Ó¦£¬AgºÍÏ¡ÁòËá²»·´Ó¦£¬ËùÒÔ×îºóÊ£Óà¹ÌÌåµÄÖÊÁ¿¾ÍÊǺϽðÖÐAgµÄÖÊÁ¿£¬¼´AgµÄÖÊÁ¿Îª10.8g£»
¹ÊÌ10.8g£»
£¨2£©ÉèËùÓÃÏ¡ÁòËáÖÐÁòËáµÄÖÊÁ¿·ÖÊýΪx£¬¾ÝÌâÒâµÃ£º
H2SO4 +Zn¨TZnSO4+H2¡ü
98 65
20g¡Áx 20g-17.4g
=
x=19.6%
´ð£ºËùÓÃÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ19.6%£®
¹ÊÌ10.8g£»
£¨2£©ÉèËùÓÃÏ¡ÁòËáÖÐÁòËáµÄÖÊÁ¿·ÖÊýΪx£¬¾ÝÌâÒâµÃ£º
H2SO4 +Zn¨TZnSO4+H2¡ü
98 65
20g¡Áx 20g-17.4g
98 |
20gx |
65 |
20g-17.4g |
x=19.6%
´ð£ºËùÓÃÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ19.6%£®
µãÆÀ£º¼ÆËãËùÓÃÏ¡ÁòËáµÄÈÜÖÊÖÊÁ¿·ÖÊýʱ£¬×¢ÒâÑ¡È¡Ï¡ÁòËáÍêÈ«·´Ó¦Ê±µÄʵÑéÊý¾Ý¼´Ç°Èý´ÎʵÑéµÄÊý¾Ý½øÐмÆË㣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
Äܽ«¿ÕÆø¡¢ÑõÆø¡¢¶þÑõ»¯Ì¼ºÍÇâÆøËÄÖÖÎÞÉ«ÆøÌå¼ø±ð¿ªµÄ·½·¨ÊÇ£¨¡¡¡¡£©
A¡¢·Ö±ðÎÅËÄÖÖÆøÌåµÄÆøζ |
B¡¢½«È¼ÉÕ×ŵÄľÌõ·Ö±ðÉìÈ뼯ÆøÆ¿ÖÐ |
C¡¢½«´ø»ðÐǵÄľÌõ·Ö±ðÉìÈ뼯ÆøÆ¿ÖÐ |
D¡¢·Ö±ðÏòËÄÖÖ¼¯ÆøÆ¿Öе¹ÈëÉÙÁ¿µÄ×ÏɫʯÈïÊÔÒº£¬Õñµ´ |
³ø·¿Àï·¢ÉúµÄÏÂÁб仯ÖУ¬ÊôÓÚÎïÀí±ä»¯µÄÊÇ£¨¡¡¡¡£©
A¡¢ Æ»¹û¸¯Àà |
B¡¢ եȡ¹ûÖ |
C¡¢ Ãæ°ü·¢Ã¹ |
D¡¢ ²Ëµ¶ÉúÐâ |
ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢ÔÚ»¯Ñ§·´Ó¦ÖÐÖ»ÓÐȼÉÕ²ÅÄÜ·ÅÈÈ |
B¡¢µØ¿ÇÖк¬Á¿×î¶àµÄ½ðÊôÔªËØÊÇÑõ |
C¡¢ºÏ½ðµÄ¸÷ÖÖÐÔÄܶ¼±È´¿½ðÊôºÃ |
D¡¢½«Ê¯ÓÍ·ÖÁó¿ÉÒԵõ½¶àÖÖ²úÆ· |