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?

%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%

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

it would be a gas formation