Question

What is the percent by volume of ethanol in gasohol when 95 ml of ethanol is added to sufficient gasoline to make 1.0 l of gasohol?

Answer 1

The percentage of volume of ethanol is 9.5%.

What is volume by volume percentage?

Volume/volume percentage (v/v% or percent v/v) is a unit used to express how much of a material is present in a solution. It is defined as the volume of the solute divided by the sum of the volumes of the solution, multiplied by one hundred. Examples: The average alcohol concentration (v/v%) of wine is 12 percent.

The formula used to get the volume of ethanol in percentages is

Percent of volume of ethanol = (volume of solute / total volume) *  100

Percent volume of Ethanol = (volume of ethanol  / total volume)  * 100

                                            =  95mL  / 1000mL  *  100

                                            = 9.5%

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