Ms Zhang just told me that the concentration of my solutions wouldn't show much of a difference. But the aim of my experiment is to see the difference in rusting of copper pipes caused by the different washing solutions. Maybe I should chnage my experiment where I see if the more concentrated my solutions get the more rusting occurs. Then I could compare the differences. So would compare the difference of rusting with different concentrations of vinegear, Bi-carbonate of soda and washing powder solutions. This is what I'm going to do I'm going to label the different concentrations with different levels, from less concentrated to more concentrated. Here is an e.g. if none of you get what I'm saying:
Vinegear Solution levels
Level 1 : 75ml water and 25ml vingear
Level 2: 50ml water and 50ml Vingear
Level 3 25 ml water and 75 ml Vingear
All together I'll have to have 9 tubs
Pls leave comments on how I could improve
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