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ÖÁ×ðľ³æ (ÖøÃûдÊÖ)
- ·ÒëEPI: 204
- Ó¦Öú: 103 (¸ßÖÐÉú)
- ½ð±Ò: 15293.5
- ºì»¨: 41
- Ìû×Ó: 1611
- ÔÚÏß: 431.6Сʱ
- ³æºÅ: 3856202
- ×¢²á: 2015-05-08
- ÐÔ±ð: GG
- רҵ: 賦µÀÃâÒßÏà¹Ø¼²²¡
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s8231891: ½ð±Ò+10, ¡ïÓаïÖú 2015-07-28 17:27:30
s8231891: ½ð±Ò+10, ¡ïÓаïÖú 2015-07-28 17:27:30
| Ê×ÏÈ£¬½«ÊÊÁ¿µÄ FeCl3 ºÍMgCl2ÈÜÈë70mlÒÒ´¼µÃµ½0.09 M FeCl3 ºÍ 0.01 M MgCl2»ìºÏÒº¡£È»ºóÔÚÊÒÎÂϼÓ10ml NaOH µÄÒÒ´¼ÈÜÒº (2.03 M)µÃµ½¹Ì¶¨Ä¦¶û±ÈµÄ NaOH:FeCl3= 3:1ºÍNaOH:MgCl2 =2:1 £¬·´Ó¦ÔÚ³¬ÉùÕðµ´Ï³ÖÐø1Сʱ¡£ |
2Â¥2015-07-27 21:38:01
818james
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- ·ÒëEPI: 140
- Ó¦Öú: 59 (³õÖÐÉú)
- ½ð±Ò: 7611.1
- ºì»¨: 17
- Ìû×Ó: 1455
- ÔÚÏß: 878.1Сʱ
- ³æºÅ: 3719023
- ×¢²á: 2015-03-08
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s8231891: ½ð±Ò+10, ·ÒëEPI+1, ¡ïÓаïÖú 2015-07-28 17:27:37
s8231891: ½ð±Ò+10, ·ÒëEPI+1, ¡ïÓаïÖú 2015-07-28 17:27:37
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First, a mixture solution of 0.09 M FeCl3 and 0.01 M MgCl2 was obtained by dissolving proper amounts of FeCl3 and MgCl2 into 70 mL ethanol. Then, 10 mL NaOH ethanol solution (2.03 M) was added into the mixture solution to obtain the fixed molar ratio of NaOH:FeCl3 of 3:1 and NaOH:MgCl2 of 2:1 at room temperature, and the reaction lasted for 1 h under ultrasonic oscillation. Ê×ÏÈ£¬½«ÊÊÁ¿µÄ FeCl3 ºÍ MgCl2ÈÜÓÚ70mlÒÒ´¼ÖУ¬µÃµ½0.09MFeCl3 and 0.01 M MgCl2»ìºÏÒº¡£È»ºó£¬½« 10 mL (2.03 M) NaOHÒÒ´¼Òº¼Óµ½»ìºÏÒºÖУ¬ÒÔʹ£¨»ìºÏ·Ö×ӱȣ©NaOH:FeCl3Ϊ3:1£¬NaOH:MgCl2Ϊ 2:1£»·´Ó¦ÔÚÊÒΣ¬³¬Éù²¨Õñ¶¯Ï½øÐÐ1Сʱ¡£ |
3Â¥2015-07-27 21:42:08
ÌìɽÃ÷ÔÂ
Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)
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- ½ð±Ò: 12524.1
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- Ìû×Ó: 3117
- ÔÚÏß: 1310.8Сʱ
- ³æºÅ: 99765
- ×¢²á: 2005-11-11
- ÐÔ±ð: GG
- רҵ: ÓлúºÏ³É
4Â¥2015-07-27 22:07:30
s8231891
½ð³æ (СÓÐÃûÆø)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 1023
- É¢½ð: 50
- ºì»¨: 2
- Ìû×Ó: 97
- ÔÚÏß: 43.8Сʱ
- ³æºÅ: 3295450
- ×¢²á: 2014-06-27
- ÐÔ±ð: GG
- רҵ: »·¾³·ÖÎö»¯Ñ§
5Â¥2015-07-28 17:29:53
s8231891
½ð³æ (СÓÐÃûÆø)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 1023
- É¢½ð: 50
- ºì»¨: 2
- Ìû×Ó: 97
- ÔÚÏß: 43.8Сʱ
- ³æºÅ: 3295450
- ×¢²á: 2014-06-27
- ÐÔ±ð: GG
- רҵ: »·¾³·ÖÎö»¯Ñ§
6Â¥2015-07-28 17:30:00














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