An organic chemistry student prepared 1.27 L of a dioxane-toluene solution at 28.0 °C by measuring out 0.86 L of dioxane and 0.44 L of toluene and mixing them.

Question

Calculate the volume percent of dioxane in this solution.
Be sure your answer has the right number of significant digits.

Answer 1

To calculate the volume percent of dioxane in the solution, we first need to calculate the total volume of the solution:

Total volume = Volume of dioxane + Volume of toluene
Total volume = 0.86 L + 0.44 L
Total volume = 1.30 L

Next, we can calculate the volume percent of dioxane:

Volume percent of dioxane = (Volume of dioxane / Total volume) x 100%
Volume percent of dioxane = (0.86 L / 1.30 L) x 100%
Volume percent of dioxane = 0.66153846154 x 100%
Volume percent of dioxane = 66.2%

Therefore, the volume percent of dioxane in the solution is 66.2%.