Question

What is the percent by volume of ethanol in the final solution when 45 mL of ethanol is diluted to a volume of 250 mL with water?

Answer 1

Answer:

%Volume of ethanol = 15.25%

Explanation:

Volume of water = 250mL

Volume of ethanol = 45mL

The total volume of the solution = volume of ethanol + volume of water

Total volume = 45 + 250 = 295mL

%Volume of ethanol = Vol. of ethanol / Total volume x 100

%Volume of ethanol = 45/295 x 100

%Volume of ethanol = 15.25%