Determine the volume/volume percent solution made by combining 25 mL of ethanol with enough water to produce 200 mL of the solution. % (3 Significant Digits)

Question

Blank 1:

Answer 1

To calculate the volume/volume percent (v/v %) of the ethanol solution, you can use the following formula:

\[ \text{v/v %} = \left( \frac{\text{Volume of solute}}{\text{Total volume of solution}} \right) \times 100 \]

In this case:

• Volume of ethanol (solute) = 25 mL
• Total volume of the solution = 200 mL

Now, substitute the values into the formula:

\[ \text{v/v %} = \left( \frac{25 , \text{mL}}{200 , \text{mL}} \right) \times 100 \]

Calculating this gives:

\[ \text{v/v %} = \left( 0.125 \right) \times 100 = 12.5 % \]

Thus, the volume/volume percent solution is 12.5 %.

Final answer (with 3 significant digits): 12.5