Znn3bq.jpeg
²é¿´: 1348  |  »Ø¸´: 5
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

zb_123

ľ³æ (ÖøÃûдÊÖ)

[ÇóÖú] PH2.8µÄÁ×ËỺ³åÒº£¬ÔõôÅä°¡£¿¸÷λ´óÉñÖ¸µã°¡

ÎÒÏÖÔÚÐèÒª1LµÄPH2.8µÄÁ×ËỺ³åÒº£¬ÔõôÅä°¡£¿ÐèÒªÁ¿¶àÉÙÁ×Ëᣬ³Æ¶àÉÙÁ×Ëá¶þÇâ¼Ø£¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

zb_123

ľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by jiagle at 2012-10-15 11:38:20
c(H3PO4) : c(KH2PO4) = 10^(pKa1 - pH) = 10^(2.17 -2.8) = 0.234 £º 1
ʹÓÃÎïÖʵÄÁ¿Å¨¶È£¬¸ù¾ÝÌå»ýÕÛËã¾Í³öÀ´ÁË¡£

ÎÒÊÔÊÔÄãµÄÕâ¸öÅä±È£¬¿´¿´Äܲ»ÄÜ×ö³öÀ´
ʵÑéÊÒÀïʵÑéÔ±
4Â¥2012-10-15 15:06:31
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 6 ¸ö»Ø´ð

jiagle

ר¼Ò¹ËÎÊ (ÖªÃû×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
zb_123: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2012-10-17 14:21:33
c(H3PO4) : c(KH2PO4) = 10^(pKa1 - pH) = 10^(2.17 -2.8) = 0.234 £º 1
ʹÓÃÎïÖʵÄÁ¿Å¨¶È£¬¸ù¾ÝÌå»ýÕÛËã¾Í³öÀ´ÁË¡£
2Â¥2012-10-15 11:38:20
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

µØÓüѪÓÄÁé

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
°Ù¶Èһϣ¬»ù±¾ËùÓеĻº³åÒº¶¼ÓÐÅä·½
3Â¥2012-10-15 13:53:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

moshuiji

½û³æ (ÖøÃûдÊÖ)

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
±¾ÌûÄÚÈݱ»ÆÁ±Î

5Â¥2012-10-17 14:18:53
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085410 273·Öµ÷¼Á +3 X1999 2026-04-09 3/150 2026-04-11 11:50 by zhq0425
[¿¼ÑÐ] 296Çóµ÷¼Á +6 Íô£¡£¿£¡ 2026-04-09 6/300 2026-04-11 11:25 by zhq0425
[¿¼ÑÐ] µ÷¼ÁÇóÖú +4 ¹ûÈ»ÓÐÎÒ 2026-04-11 5/250 2026-04-11 11:03 by Ñô¹âÏòÉÏ666
[¿¼ÑÐ] 298Çóµ÷¼Á +5 ²ÐºÉÐÂÁø 2026-04-07 5/250 2026-04-11 11:02 by ×ÏêØ×ÏÆå
[¿¼ÑÐ] 295·ÖÇóµ÷¼Á +9 ?ÒªÉϰ¶? 2026-04-10 9/450 2026-04-11 10:48 by qingpingzhu
[¿¼ÑÐ] µçÆø×¨Ë¶320Çóµ÷¼Á +4 СÂé×Ó111 2026-04-10 4/200 2026-04-11 10:16 by Delta2012
[¿¼ÑÐ] µ÷¼Á +19 СÕÅZA 2026-04-10 20/1000 2026-04-10 22:08 by Öí»á·É
[¿¼ÑÐ] 336²ÄÁÏÓ뻯¹¤085600Çóµ÷¼Á +21 Ë®ÐǼÇinfp 2026-04-05 24/1200 2026-04-10 15:28 by luoyongfeng
[¿¼ÑÐ] »úе»¹Óл¹ÓÐÃû¶îÂð£¿Ì«ÄÑÁË +6 ЦЦԬ 2026-04-10 6/300 2026-04-10 11:54 by ¸ßά´º
[¿¼ÑÐ] Çóµ÷¼Á +16 ÐܶþÏëÉϰ¶ 2026-04-04 16/800 2026-04-10 11:24 by may_ÐÂÓî
[¿¼ÑÐ] 308Çóµ÷¼Á +21 ÌÈÈôÆð·çÁËÄØ 2026-04-05 21/1050 2026-04-10 08:13 by Sammy2
[¿¼ÑÐ] 314Çóµ÷¼Á +14 weltZeng 2026-04-09 14/700 2026-04-09 23:14 by wolf97
[¿¼ÑÐ] ¶þ´Îµ÷¼ÁÇóÀÏʦÊÕÁô +3 ЦЦԬ 2026-04-08 3/150 2026-04-08 23:50 by ×íÔÚ·çÀï
[¿¼ÑÐ] 266µ÷¼Á +8 daya sun 2026-04-07 9/450 2026-04-08 20:27 by yutian743
[¿¼ÑÐ] Çóµ÷¼Á +11 wwwwabcde 2026-04-07 11/550 2026-04-07 23:16 by JourneyLucky
[¿¼ÑÐ] 318Çóµ÷¼Á +5 ÀîÇàɽɽɽ 2026-04-07 5/250 2026-04-07 18:24 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ÉúÎïµ÷¼Á +5 ³È×Ó³È×Ó³È×Ó°¡ 2026-04-05 9/450 2026-04-07 15:31 by Éϰ¶¿ì¿ì
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +14 ºôºô£¿~+123456 2026-04-05 14/700 2026-04-06 22:50 by chenzhimin
[¿¼ÑÐ] 346·ÖµÄÉúÎïÓëÒ½Ò©08600Çóµ÷¼Á +6 ³£ÓêÑôÉϰ¶ 2026-04-05 7/350 2026-04-06 12:36 by lys0704
[¿¼ÑÐ] 298Çóµ÷¼Á +7 manman511 2026-04-05 7/350 2026-04-05 10:29 by ÌÆãå¶ù
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û