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28-09-2019
Chemistry

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What volume of sample, in mL, would be needed to make 2 mL of a 5-fold dilution? (3 significant figures needed)

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sebassandin sebassandin

28-09-2019

Answer:

0.400 mL

Explanation:

Hello, the dilution factor (in folds) is given by:

[tex]folds=\frac{total_{volume}}{sample_{volume}}[/tex]

Thus, the sample volume with three significant figures is given by:

[tex]sample_{volume}=\frac{2mL}{5"folds"}=0.400 mL[/tex]

Best regards.

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