²é¿´: 1319  |  »Ø¸´: 5

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

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

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

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

xxxxiigd

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
4Â¥: Originally posted by zb_123 at 2012-10-15 15:06:31
ÎÒÊÔÊÔÄãµÄÕâ¸öÅä±È£¬¿´¿´Äܲ»ÄÜ×ö³öÀ´...

ÄãºÃ  ÎÒÏëÎÊһϠÄãÕâ¸ö»º³åÒºÊǰ´ÕÕÕâ¸öÅä±È×öµÄÂð£¿
6Â¥2019-09-27 20:06:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ zb_123 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 304Çóµ÷¼Á +11 СÐÜjoy 2026-03-14 12/600 2026-03-18 09:59 by macy2011
[¿¼ÑÐ] 312Çóµ÷¼Á +7 İå·Ï£ 2026-03-16 8/400 2026-03-18 09:54 by macy2011
[¿¼²©] »·¾³ÁìÓòÈ«¹úÖØµãʵÑéÊÒÕÐÊÕ²©Ê¿1-2Ãû +3 QGZDSYS 2026-03-13 3/150 2026-03-18 00:13 by PY-Hzb
[¿¼ÑÐ] Ò»Ö¾Ô¸ËÕÖÝ´óѧ²ÄÁϹ¤³Ì£¨085601£©×¨Ë¶ÓпÆÑо­ÀúÈýÏî¹ú½±Á½¸öʵÓÃÐÍרÀûÒ»ÏîÊ¡¼¶Á¢Ïî +6 ´ó»ðɽС»ðɽ 2026-03-16 8/400 2026-03-17 15:05 by ÎÞи¿É»÷111
[¿¼ÑÐ] Ò»Ö¾Ô¸£¬¸£ÖÝ´óѧ²ÄÁÏר˶339·ÖÇóµ÷¼Á +3 ľ×ÓmomoÇàÕù 2026-03-15 3/150 2026-03-17 07:52 by laoshidan
[¿¼ÑÐ] 286Çóµ÷¼Á +3 lemonzzn 2026-03-16 5/250 2026-03-16 20:43 by lemonzzn
[¿¼ÑÐ] 0854¿ØÖƹ¤³Ì 359Çóµ÷¼Á ¿É¿çרҵ +3 626776879 2026-03-14 9/450 2026-03-16 17:42 by 626776879
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +6 ÄÝÄÝninicgb 2026-03-15 9/450 2026-03-16 16:40 by houyaoxu
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤ Çóµ÷¼Á +13 enenenhui 2026-03-13 14/700 2026-03-16 15:19 by ÁËÁËÁËÁË¡£¡£
[¿¼ÑÐ] 285Çóµ÷¼Á +6 ytter 2026-03-12 6/300 2026-03-16 15:05 by njzyff
[¿¼ÑÐ] Öпƴó²ÄÁÏר˶319Çóµ÷¼Á +3 ÃÏöβÄÁÏ 2026-03-13 3/150 2026-03-14 18:10 by houyaoxu
[¿¼ÑÐ] 308Çóµ÷¼Á +5 ÊÇLupa°¡ 2026-03-11 5/250 2026-03-13 22:13 by JourneyLucky
[¿¼ÑÐ] 333Çóµ÷¼Á +3 ÇòÇò¹ÅÁ¦ 2026-03-11 3/150 2026-03-13 21:27 by JourneyLucky
[¿¼ÑÐ] £¨081700£©»¯Ñ§¹¤³ÌÓë¼¼Êõ-298·ÖÇóµ÷¼Á +12 11À²À²À² 2026-03-11 35/1750 2026-03-13 21:25 by JourneyLucky
[¿¼ÑÐ] 26µ÷¼Á/²ÄÁÏ¿ÆÑ§Ó빤³Ì/×Ü·Ö295/ÇóÊÕÁô +9 2026µ÷¼ÁÏÀ 2026-03-12 9/450 2026-03-13 20:46 by 18595523086
[¿¼ÑÐ] Çóµ÷¼Á +7 18880831720 2026-03-11 7/350 2026-03-13 16:10 by JourneyLucky
[¿¼ÑÐ] ¹¤¿Æµ÷¼Á +4 Jiang191123£¡ 2026-03-11 4/200 2026-03-13 15:15 by Miko19
[¿¼ÑÐ] 0817»¯Ñ§¹¤³ÌÓë¼¼Êõ¿¼ÑÐ312·Öµ÷¼Á +3 T123 tt 2026-03-12 3/150 2026-03-13 10:49 by houyaoxu
[¿¼ÑÐ] 270Çóµ÷¼Á 085600²ÄÁÏÓ뻯¹¤×¨Ë¶ +3 YXCT 2026-03-11 3/150 2026-03-13 10:13 by houyaoxu
[¿¼ÑÐ] 333Çóµ÷¼Á +3 152697 2026-03-12 4/200 2026-03-13 07:08 by Iveryant
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û