麻煩請解答以下溶液嘅顏色:
1.SO2(aq)
2.Fe2(SO4)3(aq)
3.I2(aq)
4.NH4VO3(aq)+H2SO4(aq)+Cu(s)
5.NH4VO3(aq)+H2SO4(aq)+FeSO4(aq)+KI(aq)
6.NH4VO3(aq)+H2SO4(aq)+FeSO4(aq)+Fe2(SO4)3(aq)
7.NH4VO3(aq)+H2SO4(aq)+Cu(s)+Fe2(SO4)3(aq)
8.NH4VO3(aq)+H2SO4(aq)+Cu(s)+I2
9.NH4VO3(aq)+H2SO4(aq)+FeSO4(aq)+I2
仲有第5,8同9加左Na2S2O3之後又變左咩色呢?
CHEM 一問
2011-11-27 6:35 am
回答 (3)
2011-11-29 12:49 am
✔ 最佳答案
2.yellow 3.brown
4.blue
5.yellowish green
6.yellowish green
7.blue
8.blue
9.yellowish green
it will become colourless due to the treatment of Na2S2O3
2011-11-28 7:06 am
001: SO2 is soluble in water.
2011-11-28 1:50 am
SO2 --> no liquid !!!! --> colourless gas
Fe2(SO4)3 --> Green
I2 insoluble in water --> in organic solvent (alcohol) --> purple
Fe2(SO4)3 --> Green
I2 insoluble in water --> in organic solvent (alcohol) --> purple
收錄日期: 2021-04-25 17:07:30
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https://hk.answers.yahoo.com/question/index?qid=20111126000051KK00943