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作者 lrfnc 在 PTT [ Chemistry ] 看板的留言(推文), 共56則

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[生活] 水素水?

[ Chemistry ]11 留言, 推噓總分: -1

作者: kodi - 發表於 2018/01/30 17:25(8年前)

9^F噓lrfnc: 科科..不只有水素水..還有硅素水喔..02/01 00:10

[學習]關於分壓的問題

[ Chemistry ]6 留言, 推噓總分: +3

作者: radiohead627 - 發表於 2017/03/03 13:24(9年前)

3^F推lrfnc: 密閉空間，液體蒸氣壓不是固定的嗎03/04 23:22

化學品名詢問

[ Chemistry ]4 留言, 推噓總分: +1

作者: jackspook - 發表於 2015/10/15 16:01(10年前)

1^F推lrfnc: paraben一般化工材料行應該買得到10/16 02:03

[學科]1,3-dimethylcyclobutane之順式為何比反式穩定？

[ Chemistry ]6 留言, 推噓總分: +2

作者: fangli77 - 發表於 2012/09/16 01:10(13年前)

1^F推lrfnc:立體障礙比較小?????09/16 01:28

[請益]關於工業用二甲基甲醯胺(DMF)與水做分離

[ Chemistry ]27 留言, 推噓總分: +10

作者: hsnuallen - 發表於 2012/08/10 21:56(13年前)

3^F推lrfnc:爆炸掰掰而已08/11 01:05

[高中] 酸鹼滴定

[ Chemistry ]7 留言, 推噓總分: +3

作者: Sexbox - 發表於 2011/10/17 00:16(14年前)

3^F推lrfnc:0.001mole的HCl就可以配出1L，pH=3的鹽酸1L..可是醋酸需要大10/17 01:04

4^F→lrfnc:於0.001mole的量才有辦法配出同樣pH一升的醋酸10/17 01:05

7^F推lrfnc:因為要解離出來0.001mole的H+..不只需要0.001mole的CH3COOH10/17 23:08

Re: [學科] 有機化學的2個問題?

[ Chemistry ]64 留言, 推噓總分: +21

作者: SureWinmouse - 發表於 2010/10/10 19:35(15年前)

2^F推lrfnc:為什麼(B)會發生??10/10 22:36

[生活] 浴室衛生紙乾了為什麼不好去除?

[ Chemistry ]2 留言, 推噓總分: +1

作者: aucourant - 發表於 2010/08/28 21:59(15年前)

2^F推lrfnc:再弄濕不就ok了08/29 07:28

[問題]配製溶液= . ='

[ Chemistry ]4 留言, 推噓總分: +1

作者: TW185930 - 發表於 2010/03/11 22:02(16年前)

4^F→lrfnc:修錯字..是配製才對03/13 04:39

[學科] 有機化學

[ Chemistry ]21 留言, 推噓總分: +6

作者: mowgo - 發表於 2010/01/24 23:22(16年前)

13^F推lrfnc:嗯..選項3是非平面的，蠻多有機書都有，不過感覺學生常會忽01/25 07:52

14^F→lrfnc:略掉，只算電子數就判斷為anti-aromatic..一定要確定為平面01/25 07:53

15^F→lrfnc:分子後，才能再判斷是否為aromatic或anti-aromatic01/25 07:54

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