An organic chemistry student prepared 0.668 L of a cyclohexane-toluene solution at 29.0 °C by measuring out 222. mL of cyclohexane and 0.42 L of toluene and mixing them.Calculate the volume percent of cyclohexane in this solution.Be sure your answer has the right number of significant digits.
Question
An organic chemistry student prepared 0.668 L of a cyclohexane-toluene solution at 29.0 °C by measuring out 222. mL of cyclohexane and 0.42 L of toluene and mixing them.Calculate the volume percent of cyclohexane in this solution.Be sure your answer has the right number of significant digits.
Solution
To calculate the volume percent of cyclohexane in the solution, you need to follow these steps:
-
Convert all volumes to the same units. In this case, we will use liters. The volume of cyclohexane is already given in liters (0.222 L), and the volume of toluene is also given in liters (0.42 L).
-
Add the volumes of cyclohexane and toluene to get the total volume of the solution. The total volume is 0.222 L (cyclohexane) + 0.42 L (toluene) = 0.642 L.
-
Calculate the volume percent of cyclohexane by dividing the volume of cyclohexane by the total volume of the solution and then multiplying by 100 to get a percentage. The volume percent of cyclohexane is (0.222 L / 0.642 L) * 100 = 34.6%.
So, the volume percent of cyclohexane in the solution is 34.6%. This answer has three significant digits, which is appropriate given the number of significant digits in the original measurements.
Similar Questions
An organic chemistry student prepared 783. mL of a cyclohexane-xylene solution at 27.0 °C by measuring out 486. mL of cyclohexane and 313. mL of xylene and mixing them.Calculate the volume percent of cyclohexane in this solution.Be sure your answer has the right number of significant digits.
A chemist prepares a mixture of cyclohexane and ethanol at a temperature of 24.0 °C. He measures out 89.8 mL of cyclohexane and mixes it with 0.45 L of ethanol. He measures the volume of the solution after it is well mixed and finds that it is 0.556 L. The density of cyclohexane is 0.78 /gmL and the density of ethanol is 0.79 /gmL.Calculate the volume percent of cyclohexane in this solution.Be sure your answer has the right number of significant digits.
Suppose 64.6 mL of dioxane and 57.5 mL of toluene are mixed, and the final solution has a volume of 116. mL. Note that the density of dioxane is 1.03 /gmL.Calculate the volume percent of dioxane in this solution.Be sure your answer has the right number of significant digits.
Problem PageQuestionSuppose 88.2 mL of chloroform and 319. mL of toluene are mixed, and the final solution has a volume of 415. mL. Note that the density of chloroform is 1.49 /gmL.Calculate the volume percent of chloroform in this solution.Be sure your answer has the right number of significant digits.
A 1.04 L solution was made by mixing 116. mL of acetone, which has a density of 0.78 /gmL, and 0.89 L of toluene, which has a density of 0.87 /gmL.Calculate the volume percent of acetone in this solution.Be sure your answer has the right number of significant digits.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.