Question

What is the percent by volume % V/V) of ethanol in a solution prepared by adding enough water to 23.7 mL of ethanol to nake 127 mL of ethanol solution? A.) 18.7% B.) 23.7% C.) 30.1% D.) 22.9% E.) 81.3% F.) 12.7%

Answer 1

The percent by volume of ethanol in the solution is approximately 18.7%

Step-by-step explanation:

The percent by volume (% V/V) of ethanol in a solution can be calculated by dividing the volume of ethanol by the total volume of the solution and then multiplying by 100. In this case, the volume of ethanol is 23.7 mL and the total volume of the solution is 127 mL.

So, the percent by volume of ethanol can be calculated as follows:

Percent by volume of ethanol = (Volume of ethanol / Total volume of solution) x 100
Percent by volume of ethanol = (23.7 mL / 127 mL) x 100
Percent by volume of ethanol ≈ 18.7%

Therefore, the correct answer is option A) 18.7%.

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