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you will be furnished with a 10 mL mixed stock solution containing each component at 0.10 mg/mL. 1. chlorpyrifos, 2. ethyl parathion, 3. malathion. Dilutions: you will need to prepare standards in 1:1 hexane:acetone at the given concentration and final volume listed below from the mixed stock solution: con.(ng/uL0=0.5,1,5,10,15,20 and final volumes (mL)=10,2,2,2,1,1. I have no idea what they are even asking much less how to calculate it. I know it is a dilution problem but I am lost other than that. Please help. The concentrations and final volumes were given in a table and paired by the way.

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