Paka_b
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Ok, ive got this all mixed up If I have 5 concentrations of a substance (IAA) 10-4, 10-3, 10-2, 10-1 and 1, can you please list them from highest to lowest concentration (urgent reply needed). Trust me you will only be steering me in the right direction, this isnt all my homework, I have to write a whole prac report by tomorrow.