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A technician tested the protein concentration of a tube to be 5 mg/mL. This tube was...

A technician tested the protein concentration of a tube to be 5 mg/mL. This tube was the third tube of a two-fold serial dilution. What was the concentration of the original tube?
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Answer #1

the concentration of protein is halved in the successive test tubes, so, the concentration should be double the amount in the previous test tubes so as to satisfy the 2 fold serial dilutions.

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