Answer:
the volume percentage of ethanol in the solution is 3.85%
Step by step explanation:
To calculate the volume percentage of ethanol, we need to know the total volume of the solution after the ethanol is added to the water. The total volume can be calculated by adding the volume of ethanol to the volume of water:
Total volume = volume of ethanol + volume of water
Total volume = 10 ml + 250 ml
Total volume = 260 ml
Now, we can calculate the volume percentage of ethanol:
Volume percentage of ethanol = (volume of ethanol / total volume) x 100%
Volume percentage of ethanol = (10 ml / 260 ml) x 100%
Volume percentage of ethanol = 3.85%
Therefore, the volume percentage of ethanol in the solution is 3.85%.