Question

A solution of ethanol in water is prepared by dissolving 75 ml of ethanol in water. If the final volume of the solution is 100 ml, what is the volume percentage of ethanol in the solution?

A. 25%
B. 50%
C. 75%
D. 80%

Answer 1

To find the volume percentage of ethanol in the solution, divide the volume of ethanol by the final volume of the solution and multiply by 100. In this case, the volume percentage of ethanol is 75%.

Step-by-step explanation:

To find the volume percentage of ethanol in the solution, we need to divide the volume of ethanol by the final volume of the solution and multiply by 100.

Volume percentage of ethanol = (Volume of ethanol / Final volume of solution) * 100

Given that the volume of ethanol is 75 ml and the final volume of the solution is 100 ml:

Volume percentage of ethanol = (75 ml / 100 ml) * 100 = 75%

Therefore, the volume percentage of ethanol in the solution is 75%.

To find the volume percentage of ethanol in the solution, divide the volume of ethanol by the final volume of the solution and multiply by 100. In this case, the volume percentage of ethanol is 75%.