| ²é¿´: 845 | »Ø¸´: 3 | ||
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | ||
luxinrui½ð³æ (ÕýʽдÊÖ)
|
[½»Á÷]
¡¾ÇóÖú¡¿PH4.5ÄûÃÊËá-Á×ËỺ³åÒºµÄÅäÖÆ·½·¨
|
|
|
¼±ÇóPH4.5ÄûÃÊËá-Á×ËỺ³åÒºµÄÅäÖÆ·½·¨£¬Ð»Ð»£¡ [ Last edited by xinmeng8803 on 2009-10-20 at 20:14 ] |
¡ï
luxinrui(½ð±Ò+1,VIP+0): 10-20 13:44
luxinrui(½ð±Ò+1,VIP+0): 10-20 13:44
|
ÅäÖÆ·½·¨: 1. ĸҺA£¨0.2mol/LµÄNa2HPO4ÈÜÒº£©£º³ÆÈ¡Na2HPO4•12Ë®143.256g£¬ ÓÃÈ¥Àë×ÓË®¶¨ÈÝÖÁ2L¡£ 2. ĸҺB£¨0.1mol/LµÄÄûÃÊËáÈÜÒº£©£º³ÆÈ¡ÄûÃÊËá•1Ë®42.028g ÓÃÈ¥Àë×ÓË®ÈܽⶨÈÝÖÁ2L¡£ 3. pH 4.6 454ml A 546ml B 4. °´Éϱí»ìÔȺó£¬4¡æ±£´æ¡£ |
2Â¥2009-10-12 17:16:12
luxinrui
½ð³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 460.1
- É¢½ð: 1738
- ºì»¨: 3
- Ìû×Ó: 510
- ÔÚÏß: 81.6Сʱ
- ³æºÅ: 744656
- ×¢²á: 2009-04-09
- ÐÔ±ð: MM
- רҵ: ÍÁÈÀѧ
3Â¥2009-10-15 08:39:36
4Â¥2009-10-15 12:00:59














»Ø¸´´ËÂ¥