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zues1000 zues1000
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11 years ago
Using a 0.4mL aliquot of the 0.1mM solution, how much water is needed to dilute the solution to 0.02mM? Using what dilution factor?
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#1
11 years ago
You need a total volume that is 0.4mL * 0.1/0.02 = 2.0 mL.

Since you already have 0.4 mL, you need an additional 1.6 mL.

You are adding 4 times the original amount, in order to dilute to 1/5 strength.
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