作者botarabbit (我以姓聞為榮)
看板Chemistry
標題[普化] 請教四個小問題
時間Thu Oct 25 03:50:54 2007
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有四個問題...
做到半夜還是做不懂
希望高手可以幫忙解答....
1.Copper metal readily dissolves in dilute aqueous nitric acid to form
blue (Cu2+) and nitric oxide gas.
What has been reduced?
2.How much slaked lime(Ca(OH)2) would be needed to neutralize the acid
in a lake that contains 4.00x10^5 M and has a volume of 2.60 miles
(1.20cubic = 5.00x10^12 L )?
3.What is the PH of a solution prepared by diluting 25.0 mL of 0.874 M HCl
to a volume of 575 mL ?
4.It is considered highly dangerous to splash barefoot in puddles
during a lightning storm. Why?
幫解.. 感激不盡
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5件兒時無聊事
1.玩米缸，將手插入米缸滿滿的米裡面搞下搞下。
2.別人碰到自己，一定要碰回去。
3.地下有格子磁磚時，一定要一格一格走(不可以踩界，要完全在格內，斑馬線亦同)。
4.超級市場裡踩住購物推車滑行。
5.削鉛筆一定要用削鉛筆機削到最尖(易斷)。
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◆ From: 140.120.224.144
※ 編輯: botarabbit 來自: 140.120.224.144 (10/25 03:51)
※ 編輯: botarabbit 來自: 140.120.224.144 (10/25 03:52)
1F：→ shy723:這好像算是高中化學裡面最基本的題目...沒任何深度 10/25 14:11