Znn3bq.jpeg
±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1271  |  »Ø¸´: 14
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

zhaowei123

ľ³æ (СÓÐÃûÆø)

[½»Á÷] ¡¾ÇóÖú¡¿ÔõôÅäÖÆ0.5M£¬PHΪ4.7µÄ´×Ëá|´×Ëá¼Ø»º³åÈÜÒº£¿»òÕß´×Ëá|´×ËáÄÆ£¿ ÒÑÓÐ9È˲ÎÓë

ÔõôÅäÖÆ0.5M£¬PHΪ4.7µÄ´×Ëá|´×Ëá¼Ø»º³åÈÜÒº£¿»òÕß´×Ëá|´×ËáÄÆ£¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

29338048

Òø³æ (СÓÐÃûÆø)

¡ï
zhaowei123(½ð±Ò+1):лл²ÎÓë
ºÇºÇ£¬²»ÏþµÃ~
2Â¥2010-04-05 10:29:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

29338048

Òø³æ (СÓÐÃûÆø)

¡ï ¡ï ¡ï
chemistryer(½ð±Ò-3):½ûÖ¹¹àË® 2010-04-05 21:40
ÆäʵÊÇÀ´×¬BµÄ~
3Â¥2010-04-05 10:30:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

neilxing

ľ³æ (ÕýʽдÊÖ)

¡ï
zhaowei123(½ð±Ò+1):лл²ÎÓë
zhaowei123(½ð±Ò+2): 2010-04-05 11:04
·Ö±ðÅäÖÆ1.0MµÄ´×ËáºÍ´×Ëá¼ØÈÜÒº£¬Ö®ºóµÈÌå»ý»ìºÏ¼´¿É
ÎÒµÄÔ¸Íû£ºÃð×åÈÕ±¾¹í×Ó£¬ÎÄ»¯Å«ÒÛº«¹ú-------------------------------------------------²Î¹ÛÎҵIJ©¿Í:http://bionanotextile.bokee.com/ÓëÄÉÃס¢ÉúÎï
4Â¥2010-04-05 10:31:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zhaowei123

ľ³æ (СÓÐÃûÆø)

chemistryer:µã»÷ ÒýÓûظ´¸ÃÌùÂ¥ÉϲÅÄÜ¿´µ½ 2010-04-05 21:41
ÄãÈ·¶¨£¿µÈÌå»ý»ìºÏ¾ÍÄܵõ½PHΪ4.8
5Â¥2010-04-05 10:51:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xpli

½ð³æ (СÓÐÃûÆø)

¡ï
zhaowei123(½ð±Ò+1):лл²ÎÓë
ÏÈÅäÖÆ0.5MµÄ´×Ëá¼ØÈÜÒº£¬È»ºóÓô×Ëáµ÷PHµ½4.7
6Â¥2010-04-05 11:39:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÄäÃû

Óû§×¢Ïú (ÖøÃûдÊÖ)

¹¤³Ì¼¼Êõ

¡ï
zhaowei123(½ð±Ò+1):лл²ÎÓë
±¾Ìû½öÂ¥Ö÷¿É¼û
7Â¥2010-04-05 12:15:07
ÒÑÔÄ   ÉêÇëICEPI   »Ø¸´´ËÂ¥   ±à¼­   ²é¿´ÎÒµÄÖ÷Ò³

neilxing

ľ³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by zhaowei123 at 2010-04-05 10:51:58:
ÄãÈ·¶¨£¿µÈÌå»ý»ìºÏ¾ÍÄܵõ½PHΪ4.8

È·¶¨¡£

pH=pKa-lg[C(HAc)/C(NaAc)]

µ±C(HAc)=C(NaAc)ʱ£¬pH=pKa(HAc)=4.75
ÎÒµÄÔ¸Íû£ºÃð×åÈÕ±¾¹í×Ó£¬ÎÄ»¯Å«ÒÛº«¹ú-------------------------------------------------²Î¹ÛÎҵIJ©¿Í:http://bionanotextile.bokee.com/ÓëÄÉÃס¢ÉúÎï
8Â¥2010-04-05 12:21:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÄäÃû

Óû§×¢Ïú (ÖøÃûдÊÖ)

¹¤³Ì¼¼Êõ

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
±¾Ìû½öÂ¥Ö÷¿É¼û
9Â¥2010-04-05 12:27:20
ÒÑÔÄ   ÉêÇëICEPI   »Ø¸´´ËÂ¥   ±à¼­   ²é¿´ÎÒµÄÖ÷Ò³

neilxing

ľ³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by 2514414 at 2010-04-05 12:27:20:
25¡æµÄ´×ËáµÄÀí½â¶ÈÊÇ1.8%£¬ph=4.7¾ÍÊÇ{H}=10^(-4.7) =0.00002.ͨ¹ýÎïÁÏÆ½ºâ¿ÉÒÔ¼ÆËã³öÀ´¡£

"25¡æµÄ´×ËáµÄÀí½â¶ÈÊÇ1.8%¡°£¬ÕâÊÇûÓд×ËáÄÆµÄʱºò¡£µ«Óд×ËáÄÆÊÇÖ»ÓÐ0.018%
ÎÒµÄÔ¸Íû£ºÃð×åÈÕ±¾¹í×Ó£¬ÎÄ»¯Å«ÒÛº«¹ú-------------------------------------------------²Î¹ÛÎҵIJ©¿Í:http://bionanotextile.bokee.com/ÓëÄÉÃס¢ÉúÎï
10Â¥2010-04-05 12:33:20
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ zhaowei123 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 263·ÖBÇøÇóµ÷¼Á +6 Àînihao 2026-04-08 6/300 2026-04-08 09:38 by ÄÏ¿ªÐ¡ôë
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÄÏʦ·¶´óѧ0702ÎïÀíѧ305µ÷¼Á +3 Äî³£°² 2026-04-07 5/250 2026-04-08 06:45 by lijunpoly
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +12 ÏàÐűػá¹ââÍòÕ 2026-04-06 15/750 2026-04-07 21:22 by ÇÇßÕßÕßÕ
[¿¼ÑÐ] ÉúÎïѧ363µ÷¼ÁÇóÖú +7 fanzhang6666 2026-04-06 9/450 2026-04-07 17:37 by lijunpoly
[¿¼ÑÐ] 328Çóµ÷¼Á +4 ghhh88888 2026-04-06 5/250 2026-04-07 14:45 by ghhh88888
[¿¼ÑÐ] 286Çóµ÷¼Á +20 Faune 2026-04-06 20/1000 2026-04-07 11:33 by Ê«Óë×ÔÓÉ
[¿¼ÑÐ] Çóµ÷¼Á Ò»Ö¾Ô¸Î÷ÄϽ»Í¨´óѧ085701»·¾³¹¤³Ì 282·Ö +13 ¶à¶à°®³Ôºº±¤ 2026-04-04 14/700 2026-04-07 11:22 by Ê«Óë×ÔÓÉ
[¿¼ÑÐ] 277¹¤¿ÆÇóµ÷¼Á +10 1915668 2026-04-04 11/550 2026-04-06 23:53 by ÐÄæÂÒâ±±
[¿¼ÑÐ] 304Çóµ÷¼Á +4 luoye0105 2026-04-05 4/200 2026-04-06 21:05 by ľ×Ó¾ý1218
[¿¼ÑÐ] ר˶304ÕÒµ÷¼Á£¬Ò»Ïß³ÇÊÐ×îºÃ +3 ÀîlslÀî 2026-04-05 3/150 2026-04-06 12:16 by ffffjjjj
[¿¼ÑÐ] ²ÄÁÏר˶283Çóµ÷¼Á +17 ÊÔÊÔ¿´ß 2026-04-04 18/900 2026-04-06 09:24 by 286640313
[¿¼ÑÐ] µ÷¼Á +3 Àî¹ã»ð 2026-04-05 3/150 2026-04-05 18:57 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì×Ü·Ö358Çóµ÷¼Á +6 cs0106 2026-04-05 6/300 2026-04-05 16:34 by imissbao
[¿¼ÑÐ] 325Çóµ÷¼Á +4 ´º·ç²»½èÒâ 2026-04-04 4/200 2026-04-04 22:08 by à£à£à£0119
[¿¼ÑÐ] Çóµ÷¼Á +4 êɹ¦? 2026-04-03 4/200 2026-04-04 21:58 by hemengdong
[¿¼ÑÐ] 0710ÉúÎïѧ336·ÖÇóµ÷¼Á +6 kiyy 2026-04-01 8/400 2026-04-04 10:10 by kiyy
[¿¼ÑÐ] Êý¶þÓ¢¶þ348Çóµ÷¼Á +4 hxdzj1 2026-04-03 5/250 2026-04-03 21:25 by zhq0425
[¿¼ÑÐ] Çóµ÷¼Á22408 288·Ö +5 new382 2026-04-02 5/250 2026-04-03 09:13 by ×íÔÚ·çÀï
[¿¼ÑÐ] ²ÄÁÏ340·Öµ÷¼Á +7 ÏÄÒ¹Íí·ç_long 2026-04-02 9/450 2026-04-02 21:20 by dongzh2009
[¿¼ÑÐ] Ò»Ö¾Ô¸9³õÊÔ366 ±¾Ë«·ÇÇóµ÷¼Á +4 ÔËÆøÀ´µÃÈôÓÐËÆÎ 2026-04-02 4/200 2026-04-02 09:56 by guanxin1001
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û