Answer
There are necessary 25.0 mL of acetic acid to prepare 250. mL of that solution.
Work Step by Step
1. Identify the conversion factors:
- Since the acetic acid solution is 10.0% (v/v):
10.0 mL (Solute) = 100 mL (Solution)
So: $\frac{10.0 \space mL \space (Solute)}{100 \space mL \space (Solution)}$ and $\frac{100 \space mL \space (Solution)}{10.0 \space mL \space (Solute)}$
2. Calculate the volume of solute needed to prepare 250. mL of that solution:
$250. \space mL \space (Solution) \times \frac{10.0 \space mL \space (Solute)}{100 \space mL \space (Solution)} = 25.0 \space mL \space (Solute)$
