Question

How many mL of isopropyl alcohol solution (40% v/v) would contain 2.5 mL of isopropyl alcohol? Report your answer in mL

Answer 1

Answer:

$V_{solution}=6.25mL$

Explanation:

Hello there!

In this case, given the by-volume percent and the volume of isopropyl alcohol as the solute, we can compute the volume of the solution via:

$\% v/v=\frac{V_{solute}}{V_{solution}} *100\%\\\\V_{solution}=\frac{V_{solute}}{\% v/v} *100\%$

Now, we plug in the given data to obtain:

$V_{solution}=\frac{2.5mL}{40\%} *100\%\\\\V_{solution}=6.25mL$

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