Questions: How many mL of propyl alcohol are required to make a 2.27% (v/v) aqueous solution in a 100 mL volumetric flask?

Solution Steps

We need to determine the volume of propyl alcohol required to make a 2.27% (v/v) aqueous solution in a 100 mL volumetric flask.

The percentage (v/v) means volume of solute (propyl alcohol) per 100 mL of solution. Therefore, 2.27% (v/v) means 2.27 mL of propyl alcohol in 100 mL of solution.

Since the total volume of the solution is 100 mL, we can directly use the percentage to find the volume of propyl alcohol: \[ \text{Volume of propyl alcohol} = \frac{2.27}{100} \times 100 \, \text{mL} = 2.27 \, \text{mL} \]

Final Answer