Znn3bq.jpeg
²é¿´: 2185  |  »Ø¸´: 9
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

·Ð·Ð27

гæ (СÓÐÃûÆø)

[ÇóÖú] 20mmo/lÁ×ËỺ³åÈÜÒº ph=2.5 ÔõôÅä ÒÑÓÐ2È˲ÎÓë

Õâ¸öÔõôÅä°¡ ÊÇÓÃÁ×ËáÑÎÅä »¹ÊÇÖ±½ÓË®ÓÃÁ×Ëáµ÷ph=2.5£¿20mmolÊÇɶÒâ˼£¿
Çó¾ßÌå²½Öè°¡ лл
»Ø¸´´ËÂ¥

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

·ÖÎö

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

lifucheng

ר¼Ò¹ËÎÊ (ÖªÃû×÷¼Ò)

ÒýÓûØÌû:
7Â¥: Originally posted by ·Ð·Ð27 at 2014-12-31 17:11:25
ÊÇÅ»áÉ˺¦Öù×Ó »¹ÊÇ·åÐβ»ºÃ¿´°¡ ¹Ø¼ü¶ÔÖù×ÓÓÐÓ°ÏìÂð...

ûÓÐÓ°Ïì¹þ¡£

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
9Â¥2015-01-01 07:58:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 10 ¸ö»Ø´ð

xiaofei_lu

ľ³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
·Ð·Ð27: ½ð±Ò+3 2014-12-31 13:43:55
20mmolÊÇ20ºÁĦ¶û¡£
Á×ËáÑÎ pKa1=2.14£¬ pKa2=7.198£¬ pKa3=12.32¡£

pH = pKa + log([A+]/[HA])

ËùÒÔ£º
2.5 = 2.14 + log([H2PO4-]/[H3PO4])
[H2PO4-] + [H3PO4] = 0.02

½âÉÏÃæµÄ·½³Ì×飬Ëã³öÁ×Ëá¶þÇâÑκÍÁ×ËáµÄŨ¶È£¬·Ö±ð¼ÓÈë¼´¿É¡£

µ±È»Äã¿ÉÒÔÖ±½ÓÅä20mmolµÄÁ×ËᣬÓÃÇâÑõ»¯ÄƵ÷pHµ½2.5.
»¶Ó­¹Ø×¢ÎÒµÄ΢ÐŹ«ÖÚºÅAnalyticalChemרҵµÄ·ÖÎö»¯Ñ§¡¢É«Æ×ÖÊÆ×֪ʶƽ̨
2Â¥2014-12-31 08:28:29
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lifucheng

ר¼Ò¹ËÎÊ (ÖªÃû×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
·Ð·Ð27: ½ð±Ò+2 2014-12-31 13:44:00
archbishop: ½ð±Ò+2, ¸Ðл²ÎÓë¡£ 2014-12-31 17:11:17
ÎÒ¾õµÃÊÇÁ×ËáÑλº³åÒº°É ÊDz»ÊÇÓÃÔÚÒºÏàÉ쵀 ÏÈÅä1Éý20mMÁ×Ëá¶þÇâ¼ØÈÜÒº ÔÙÓÃÁ×Ëáµ÷pH2.5¼´¿É
3Â¥2014-12-31 08:37:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

·Ð·Ð27

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by lifucheng at 2014-12-31 08:37:36
ÎÒ¾õµÃÊÇÁ×ËáÑλº³åÒº°É ÊDz»ÊÇÓÃÔÚÒºÏàÉ쵀 ÏÈÅä1Éý20mMÁ×Ëá¶þÇâ¼ØÈÜÒº ÔÙÓÃÁ×Ëáµ÷pH2.5¼´¿É

ÊÇÒºÏà°¡ ÄÇÎÒÖ±½ÓÓÃÁ×Ëá¼ÓË®Àïµ÷³É2.5»áÓÐʲôӰÏìÂð
4Â¥2014-12-31 13:41:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 307ÖÐÒ½¿¼Ñе÷¼Á +9 ÓÚÒÔ²ÉÞÀ 2026-04-14 9/450 2026-04-19 08:41 by ÑÌÓêÁ÷ÑÄ
[¿¼ÑÐ] 327Çóµ÷¼Á +27 Xxjc1107. 2026-04-13 30/1500 2026-04-19 08:22 by cuisz
[¿¼ÑÐ] Çóµ÷¼Á +4 ¿àÃüÈË¡£¡£¡£ 2026-04-18 4/200 2026-04-19 02:01 by ÑÌÓêÁ÷ÑÄ
[¿¼ÑÐ] 291Çóµ÷¼Á +10 ¹ØÒä±±. 2026-04-14 10/500 2026-04-18 23:32 by ·²¡Çé
[¿¼ÑÐ] 22408 312Çóµ÷¼Á +24 ÃÅ·ÃþÃþ 2026-04-14 26/1300 2026-04-18 13:04 by wunaiy88
[¿¼ÑÐ] 260Çóµ÷¼Á +4 Zyt1314520.. 2026-04-17 5/250 2026-04-18 08:28 by babysonlkd
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖÐũҵ071010£¬320Çóµ÷¼Á +17 À§À§À§À§À¤À¤ 2026-04-14 19/950 2026-04-17 20:08 by ¹ØÒ»ÕµµÆcd
[¿¼ÑÐ] 295·ÖÇóµ÷¼Á +5 ?ÒªÉϰ¶? 2026-04-17 5/250 2026-04-17 16:51 by fenglj492
[¿¼ÑÐ] 322Çóµ÷¼Á +6 tekuzu 2026-04-17 6/300 2026-04-17 13:48 by Espannnnnol
[¿¼ÑÐ] Ò»Ö¾Ô¸»¦9£¬ÉúÎïѧ326Çóµ÷¼Á +9 Áõīī 2026-04-15 9/450 2026-04-16 17:14 by ´Þ´Þ´Þcccc
[¿¼ÑÐ] 291Çóµ÷¼Á +11 ¹ØÒä±±. 2026-04-14 11/550 2026-04-16 15:18 by jiahl2024
[¿¼ÑÐ] ҩѧÇóµ÷¼Á +14 à¶¹þ¼ÓÓÍ 2026-04-14 16/800 2026-04-16 10:15 by beilsong20
[¿¼ÑÐ] 085404 22408 309·ÖÇóµ÷¼Á +9 lzmk 2026-04-14 10/500 2026-04-15 20:02 by ѧԱJpLReM
[¿¼ÑÐ] 0854µ÷¼Á +13 ³¤¹­°Á 2026-04-12 16/800 2026-04-15 13:45 by fenglj492
[¿¼ÑÐ] 085801µçÆø×¨Ë¶272Çóµ÷¼Á +19 µçÆøÀî 2026-04-13 21/1050 2026-04-15 13:37 by ºÚ¿Æ¼¼¿óÒµ
[¿¼ÑÐ] 105500ҩѧÇóµ÷¼Á +4 x_skys 2026-04-12 4/200 2026-04-14 13:37 by rndfc
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á +24 Ò¶zilin 2026-04-13 25/1250 2026-04-14 09:20 by ÊÔ¹ÜÆÆÁÑ
[¿¼ÑÐ] ¿¼ÑÐÓ¢Ò»ÊýÒ»338·Ö +9 ³¤½­´óѧ¶«Ð£Çø 2026-04-13 10/500 2026-04-14 00:41 by Íõ¬Bè±
[¿¼ÑÐ] 297¹¤¿Æ£¬Çóµ÷¼Á? +13 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-12 13/650 2026-04-13 14:12 by dingyanbo1
[¿¼ÑÐ] Ò»Ö¾Ô¸Õã´óÉúÎï325·ÖÇóµ÷¼Á +9 zysheng 2026-04-12 9/450 2026-04-12 22:31 by yuyin1233
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û