acid幾M先conc?
HCl. H2SO4, HNO3.
HNO3幾時very dilute幾時dilute幾時conc -.-?
順帶一問. 點解oil spillage on the sea唔可以用soap整走 ._.?
因為biodegradable所以favourable to micro-organisms -.-? ...
7ond 發表於 10-4-2009 18:53 ![](http://nakuz.com/bbs/images/common/back.gif)
濃硫酸好似18M-.-
hcl 同 hno3 係濃我記得都16,17M...
稍唔知wo..好似上年咁 1M HNO3 加Zn 佢寫出棕色氣體
其實我都好想知幾時係稀,非常稀-.- |