化學問題
本帖最後由 john456 於 15-10-2010 17:39 編輯有條問題唔識做
想問下大家點樣做- -
個實驗係關於movement of ions when electricity is passed through a gel containing copper(II) ions and dichromate ions:
個儀器係咁
http://img827.imageshack.us/img827/156/20101015403.jpghttp://img827.imageshack.us/img827/156/20101015403.jpg
我想知個dilute sulphuric acid同個gel有乜野用- -...
希望有人幫到我... 用番F2 IS既understanding,
unlike charges attract-.-
dil. H2SO4 is used to acidify the solution.
Current cannot flow when only H2O is used. 用番F2 IS既understanding,
unlike charges attract-.-
dil. HSO is used to acidify the solution.
Curren ...
-終場ソ使者- 發表於 15-10-2010 19:59 http://www1.nakuz.com/bbs/images/common/back.gif
姐係個gel係有乜用- - 姐係個gel係有乜用- -
john456 發表於 15-10-2010 20:26 http://www4.nakuz.com/bbs/images/common/back.gif
你試想像冇左gel,d Cu2+ ions 同Cr2O72- ions會點?會同個solution溝埋-.-
個gel係用黎困住d ions 你試想像冇左gel,d Cu ions 同CrO ions會點?會同個solution溝埋-.-
個gel係用黎困住d ions ...
-終場ソ使者- 發表於 15-10-2010 20:34 http://www1.nakuz.com/bbs/images/common/back.gif
原來係咁- -
但係查實d gel真實係點樣嫁?
書同埋notes 都係得畫
又好似唔會做呢個實驗 原來係咁- -
但係查實d gel真實係點樣嫁?
書同埋notes 都係得畫
又好似唔會做呢個實驗 ...
john456 發表於 15-10-2010 20:35 http://www4.nakuz.com/bbs/images/common/back.gif
gel就好似砵仔榚同大菜榚咁,一般都係白色 你試想像冇左gel,d Cu ions 同CrO ions會點?會同個solution溝埋-.-
個gel係用黎困住d ions ...
-終場ソ使者- 發表於 15-10-2010 20:34 http://www1.nakuz.com/bbs/images/common/back.gif
係wo 一間先- -
查實佢gel入面果d
唔係應該係copper同dichromate既compound泥嫁咩- -
如果只係2種分開既離子
咁樣個實驗好似同ionic bond冇乜關係- - 係wo 一間先- -
查實佢gel入面果d
唔係應該係copper同dichromate既compound泥嫁咩- -
如果只係2種分開既 ...
john456 發表於 15-10-2010 20:41 http://www4.nakuz.com/bbs/images/common/back.gif
佢入面有水分 佢入面有水分
-終場ソ使者- 發表於 15-10-2010 20:43 http://www1.nakuz.com/bbs/images/common/back.gif
講緊copper同dichromate既compound= = 講緊copper同dichromate既compound= =
john456 發表於 15-10-2010 20:45 http://www4.nakuz.com/bbs/images/common/back.gif
copper(II) ions同dichromate ions係soluble-.-
Both copper(II) ion and dichromate ion dissolved in water.