±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2025Äê˶ʿÑо¿ÉúÕÐÉú¼òÕÂ
²é¿´: 1770  |  »Ø¸´: 6

ÍòÍò¼ÒµÄÐܽã

Ìú³æ (³õÈëÎÄ̳)

[ÇóÖú] »ðÑæÔ­×ÓÎüÊÕ·¨²âÖ²ÎïÖеÄÖؽðÊô£¬Ö²ÎïÑùÆ·ÔõôÏû»¯£¿

ÑùÆ·ÔõôÏû»¯°¡£¿£¿£¿£¿ÊµÑéÊÒûÓÐ΢²¨Ïû»¯ÒÇ£¬ÎÒ´òËãÓÃʪ·¨Ïû»¯£¬µ«ÊDz鵽µÄ¶¼ÊÇ´ó¸ÅûÓкܾßÌåµÄ²½ÖèÓëÏÖÏ󣬴óÉñÃÇ°ï°ïæ°É¡£
1¡¢¿ÉÒÔÓò£Á§ÈÝÆ÷´úÌæ¾ÛËÄ·úÒÒÏ©ÉÕ±­Âð£¿ÎÒ²éµÄºÜ¶à¶¼ ÊÇÓþÛËÄ·úÒÒÏ©ÛáÛö£¬µ±È»Ò²Óиö±ðÓò£Á§ÈÝÆ÷µÄ
2¡¢Ïû»¯µÄζÈÒªÔõô¿ØÖÆ°¡£¿¾ßÌå²½ÖèÊÇʲô£¿»á³öÏÖʲôÏÖÏó£¿ÎҲ鵽µÄ£º
   ³ÆÈ¡1.0000g·Û×´Ö²ÎïÑùÆ·ÓÚ100mL׶ÐÎÆ¿ÖÐ,·ÅÈë²£Á§ÖéÊýÁ£,¼ÓÈëHNO3   10mLºÍHClO4  5mL,½þÅÝ8h,È»ºóÓÚµç¯ÉϼÓÈÈÏû½â¡£×¢Òâµ÷½ÚÏû½âζÈÓɵ͵½¸ß,Öð½¥ÉýΣ¨µ½µ×¶àÉٶȰ¡£¿£©¡£´ý²úÉúµÄ×ØÉ«ÑÌÎíÍêÈ«Ïûʧºó,²¹¼Ó5mLHNO3¡£¼ÌÐø¼ÓÈÈÖÁð°×ÑÌ(ζÈ?),ÈÜҺ͸Ã÷,Ìå»ýÔ¼5mLΪֹ¡£¹ýÂ˳ö²ÐÔü,ÈÜÒºÒÆÖÁ25mLÈÝÁ¿Æ¿ÖÐ,ÓÃˮϴµÓÂËÔü3´Î,Ï¡ÊÍÖÁ¿Ì¶È,Ò¡Ôȱ¸Óá£Í¬Ê±×ö¿Õ°×ʵÑé1·Ý
ÕâÑùµÄ×ö·¨ÊÇÕýÈ·µÄÂð£¿ÎÒÒ²²éµ½Ö»ÓÃÏõËá½þÅÝ8h£¬»ìËá±ÈÀý¶ÔÁËÂð¸Ð¾õºÃÏñ¸ßÂÈËá²»ÓÃÄÇô¶à

3¡¢¾Ý˵¸ßÂÈËáÓöµ½ÓлúÎï»á·¢Éú±¬Õ¨£¿£¿£¿£¿£¿¼ÓÏõËá¾Í²»»á±¬Õ¨£¿Èç¹û¼Ó¶àÁËÏõËá»áÔõôÑù°¡£¿
4¡¢ÎÒÓûðÑæÔ­×ÓÎüÊÕ²âÖ²ÎïÖеÄMn¡¢Cu¡¢Zn¡¢Cr¡¢Cd¡¢Pbº¬Á¿£¬ÕâÑùÏû½âÐèÒª¸ÏËáÂð£¿Ê²Ã´¸ö¸Ï·¨£¿
5,ÎÒ»¹ÓÐÒ»´ó¶ÑÎÊÌâ¡­¡­Çó½âÊÍ£¬Çó¸æËß
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍƼö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yunjun3

ľ³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
²Î¿¼GB/T5009ʳƷ¼ì²â.
2Â¥2012-10-11 16:10:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÍòÍò¼ÒµÄÐܽã

Ìú³æ (³õÈëÎÄ̳)

ÒýÓûØÌû:
2Â¥: Originally posted by yunjun3 at 2012-10-11 16:10:24
²Î¿¼GB/T5009ʳƷ¼ì²â.

¡­¡­
3Â¥2012-10-12 21:56:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yunjun3

ľ³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
ÍòÍò¼ÒµÄÐܽã: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2012-10-16 20:31:31
ʳƷ°üÀ¨²¿·ÖÖ²ÎïÑùÆ·£¬ÈçÁ¸Ê³£¬¹Ï¹ûÊ߲˵ȡ£GB/T5009Ïû½â·½·¨Ò»°ãÓжà¸ö£¬Èç΢²¨Ïû½â£¬ÃܱÕÏû½â£¬³¨¿ªÏû½â£¬¸ù¾Ý×Ô¼ºµÄÇé¿öÑ¡Ôñ¡£
4Â¥2012-10-14 17:04:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lilingfx

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

±ØÐë°Ñ¸ßÂÈËá¸Ï¾»£¬ÒòΪËü»á¸¯Ê´ÒÇÆ÷£¬ÉϱßËûÃÇ˵µÄ¹ú±ê¿ÉÒԲο¼£¬»¹ÓУ¬±ØÐë¼Ó²£Á§Ö飬²»È»¾Í»á·¢Éú±¬Õ¨£¬²»¹ý²»»áÌ«ÑÏÖØ
5Â¥2012-12-27 22:53:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ѧ³¤ÀÏ´ó

Ìú³æ (³õÈëÎÄ̳)

ÓÃË«ÑõË®´úÌæ¸ßÂÈËáÓ¦¸Ã»á°²È«Ð©
6Â¥2013-11-07 08:43:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lingling5251

Í­³æ (СÓÐÃûÆø)

Ö²ÎïÖÐÔªËزⶨ£¬Ò»¶¨Òª¿ØÖƺÿհף¬·ñÔòһЩµÍº¬Á¿ÔªËØÊDz»ºÃ²âµÄ¡£¿ÉÒÔÏÈÓÃÏõËáÏû½â£¬Èç¹ûÓÐÓÍ×´Î¿ÉÂýÂýµÎ¼ÓË«ÑõË®£¬Èç¹ûÕâÑù¿ÉÒÔÏû½âµô£¬¾Í²»ÓüӸßÂÈËáÁË¡£ÁíÍ⣬Ïû½â֮ǰÆ÷¾ßÒªÏÈÓÃÏõËᣨ10%-20%£©½þÅÝ24СʱºòÏ´¾»ÔÙÓã¬ÏõËáºÍË«ÑõË®×îºÃÓô¿¶È¸ßµÄ£¬×îµÍÒ²ÒªÓż¶´¿°É¡£ÎÒÔÚ×ö΢²¨Ïû½â£¬ÏëÄãÕâÑùÏû½âÖ»×ö¹ýÒ»´Î£¬Ï£ÍûÄÜÓаïÖú¡£
7Â¥2015-01-25 10:56:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌøת ÎÒÒª¶©ÔÄÂ¥Ö÷ ÍòÍò¼ÒµÄÐܽ㠵ÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍƼö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[ÎÄѧ·¼²ÝÔ°] ÎÒÊÇÕæµÄÏë·ÅÆú +33 pomelolk 2024-10-29 37/1850 2024-10-31 22:57 by 2913553219
[ÂÛÎÄͶ¸å] JACS AuÆÚ¿¯ 19+5 zkzm 2024-10-26 7/350 2024-10-31 21:36 by zkzm
[ÂÛÎÄͶ¸å] ÒòÔ¤Ó¡±¾µ¼Ö²éÖØû¹ý +8 ´óÍ·´óÍ·ÏÂÓ껹³ 2024-10-26 10/500 2024-10-31 20:20 by ²ÄÁÏÁÎ
[¿¼²©] ¶¼ÊÇÉêÇ뿼ºËÖÆÁË£¬Ã»ÎÄÕµÄÎÒÕâ±²×Ó¾Íû·¨¶Á²©ÁËÂ𣿠+14 2681691861 2024-10-28 17/850 2024-10-31 20:15 by enjoyÓàÔÃ
[»ù½ðÉêÇë] ¹ã¶«Ê¡ÃæÉÏ»ù½ð +6 zb789 2024-10-28 7/350 2024-10-31 18:21 by °¢À­¶¡ÀϵÆ
[˶²©¼ÒÔ°] »µµ¼Ê¦ +17 Ô²Âú123456 2024-10-25 31/1550 2024-10-31 17:31 by chxidongn
[ÕÒ¹¤×÷] ´ó¼ÒÈëÖ°¸ßУµÄÁ÷³Ì×ßÁ˶à¾Ã£¿ +8 ÓÚ³½2008 2024-10-27 12/600 2024-10-31 16:22 by ÓÚ³½2008
[»ù½ðÉêÇë] ÇëÎÊɽ¶«Ê¡»ù½ðÖС°ÊÇ·ñ²úѧÑнáºÏ¡±Ôõôдѽ£¿ +5 ma3252788 2024-10-25 11/550 2024-10-31 14:50 by ma3252788
[¿¼²©] É격ÇóÍƼö +4 ºÍ×Ô¼ººÍ½â 2024-10-29 10/500 2024-10-31 13:24 by ÎÒÊÇÁú¸ç°¡
[»ù½ðÉêÇë] ·¢Á˸öÌû×Ó£¬ÓÐ×Ô³ÆÊÇ»ù½ðίÈËÔ±¸øÎÒ·¢Óʼþ +3 babu2015 2024-10-30 4/200 2024-10-31 07:56 by guoer713108
[ÂÛÎÄͶ¸å] SCIENCE ADVANCEͶ¸å״̬×Éѯ 5+4 Ìì½òÈË°®04 2024-10-29 4/200 2024-10-30 19:41 by nono2009
[ÂÛÎÄͶ¸å] review finalized Á½ÖÜÁËû¶¯¾²£¬Ôõô°ì°¡£¿ +3 Ò£·²ÔÚдÎÄÕ 2024-10-25 9/450 2024-10-30 17:37 by Ò£·²ÔÚдÎÄÕÂ
[ÂÛÎÄͶ¸å] Çó·¢ÂÛÎÄ·¾¶ºÍÇþµÀ 48+5 ÍõÑÞ£¨»À£© 2024-10-28 13/650 2024-10-30 12:52 by Nater1ver
[ÂÛÎÄͶ¸å] Ͷ¸åÈ·ÈÏÒÔºó·¢ÏÖ¹²×÷ÓÊÏäд´íÁË 10+4 KKongq 2024-10-28 5/250 2024-10-30 08:42 by ±±¾©À³ÒðÈóÉ«
[½ðÊô] ¹ºÂò½ðÊôÔ­ÁϺÍÑ°ÇóºÏ½ðÈÛÁ¶ +4 ËæÐÄ_ËæÐÔ 2024-10-29 4/200 2024-10-29 16:21 by ËÎС×æ¡£
[ÂÛÎÄͶ¸å] ÇóÖú 10+3 rmcqh242526 2024-10-28 3/150 2024-10-29 15:03 by bobvan
[˶²©¼ÒÔ°] ¸÷λǰ±²£¬Çë¸øÐÂÉú²©Ê¿Ò»Ð©¶Á²©µÄ½¨Òé +18 ·çÂúÂ¥i 2024-10-25 18/900 2024-10-29 11:55 by ´¢ÔËzz
[ÂÛÎÄͶ¸å] µ¼Ê¦¹ÊÒ⿨ÎÄÕ 10+6 1821588220 2024-10-25 16/800 2024-10-28 22:48 by Z780283717
[ÂÛÎÄͶ¸å] ±±´óºËÐÄÆÚ¿¯ +3 1453647214 2024-10-26 4/200 2024-10-27 15:56 by sydd4223
[Óлú½»Á÷] õ¥»¯·´Ó¦£¬ÎªÊ²Ã´ÎҵĴ¼Ã»ÓÐÁ¬ÉÏÈ¥ 100+3 win_xp 2024-10-25 4/200 2024-10-26 15:24 by win_xp
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û