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Title: Help in finding concentrations of stock solutions and four dilutions, please? Post by: FF/EMT on May 9, 2013 Given
ColorName Chemical formulamass of dyevolume of solution FD&C Blue 1ErioglaucineC37H34N2Na2O9S30 .06343 g 1.000 L FD&C Yellow 5Tartrazine C16H9N4Na3O9S20.1860 g 1.000 L Each of the dyes will carry out the following dilution scheme: Dilution #1 = 5 mL of stock + 45 mL water Dilution #2 = 30 mL of #1 + 20 mL water Dilution #3 = 35 mL of #2 + 15 mL water Dilution #4 = 30 mL of #3 + 20 mL water So Molarity must be found of the stock solution and the dilutions of Erioglaucine and Tartrazine. I am totally lost on this, any help is appreciated. Title: Help in finding concentrations of stock solutions and four dilutions, please? Post by: juan56891 on May 9, 2013 Shred whatever paper asked you this question, burn it in a fire and call it chemistry.
Title: Help in finding concentrations of stock solutions and four dilutions, please? Post by: nzp123 on May 9, 2013 0.06343 g/ 1.000 L * 0.005 L/0.05 L
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