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18 access important values if needed for this question. How many mL of acetic acid are required to make a 6.21% (v/v) aqueous solution in a 100. mL volumetric flask? mL

18 access important values if needed for this question. How many mL of acetic acid are required to make a 6.21% (v/v) aqueous solution in a 100. mL volumetric flask? mL

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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--- **Determining the Volume of Acetic Acid Needed for a Solution** **Question:** How many mL of acetic acid are required to make a 6.21% (v/v) aqueous solution in a 100. mL volumetric flask? **Answer Box:** [_______] mL **Instructions:** - Use the References to access important values if needed for this question. - Calculate the volume percentage of acetic acid needed accurately. **Submission Options:** - **Submit Answer** (Button) - **Retry Entire Group** (Button) **Status:** - 9 more group attempts remaining --- Explanation: To solve the question, you need to calculate the volume of acetic acid based on the percentage concentration and the total volume of the solution. Volume percentage (v/v) can be calculated using the formula: \[ \text{Volume (%) of Acetic Acid} = \left( \frac{\text{Volume of Acetic Acid}}{\text{Total Volume of Solution}} \right) \times 100 \] Given: - Desired concentration: 6.21% (v/v) - Total volume of solution: 100 mL Plug these values into the formula to find the volume of acetic acid required. Make sure to use the supporting documents and tools provided if needed.
Transcribed Image Text:--- **Determining the Volume of Acetic Acid Needed for a Solution** **Question:** How many mL of acetic acid are required to make a 6.21% (v/v) aqueous solution in a 100. mL volumetric flask? **Answer Box:** [_______] mL **Instructions:** - Use the References to access important values if needed for this question. - Calculate the volume percentage of acetic acid needed accurately. **Submission Options:** - **Submit Answer** (Button) - **Retry Entire Group** (Button) **Status:** - 9 more group attempts remaining --- Explanation: To solve the question, you need to calculate the volume of acetic acid based on the percentage concentration and the total volume of the solution. Volume percentage (v/v) can be calculated using the formula: \[ \text{Volume (%) of Acetic Acid} = \left( \frac{\text{Volume of Acetic Acid}}{\text{Total Volume of Solution}} \right) \times 100 \] Given: - Desired concentration: 6.21% (v/v) - Total volume of solution: 100 mL Plug these values into the formula to find the volume of acetic acid required. Make sure to use the supporting documents and tools provided if needed.
### Calculating Volume/Volume Percentage of Ethyl Alcohol Solution **Introduction:** This exercise guides students through the process of calculating the volume/volume percentage of a solution. In this particular problem, we are working with an aqueous solution of ethyl alcohol. --- **Problem Statement:** An aqueous solution of **ethyl alcohol** is made by transferring **3.90 mL** of liquid ethyl alcohol to a **50.0 mL** volumetric flask, and then adding enough water to fill the flask to the mark. What is the volume/volume percentage of ethyl alcohol in the solution? **Calculation:** To determine the volume/volume (v/v) percentage, use the formula: \[ \text{Volume/volume percentage} = \left( \frac{\text{Volume of solute}}{\text{Volume of solution}} \right) \times 100\% \] Given: - Volume of ethyl alcohol (solute) = 3.90 mL - Volume of the solution (total volume in the flask) = 50.0 mL **Solution:** Substituting the given values into the formula: \[ \text{Volume/volume percentage} = \left( \frac{3.90 \text{ mL}}{50.0 \text{ mL}} \right) \times 100\% = 0.078 \times 100\% = 7.8\% \] --- **Answer:** The volume/volume percentage of ethyl alcohol in the solution is **7.8%**. --- **Interactive Section:** Enter your answer in the provided text box and submit to confirm your calculations. \[ \text{Volume/volume percentage} = \_\_\_\_\_ \% \] [Submit Answer] [Retry Entire Group] (9 more group attempts remaining) --- **Concluding Summary:** Understanding how to calculate v/v percentage composition is critical in various fields such as chemistry, biology, and environmental science. This foundational knowledge ensures that solutions are prepared accurately for experiments and applications.
Transcribed Image Text:### Calculating Volume/Volume Percentage of Ethyl Alcohol Solution **Introduction:** This exercise guides students through the process of calculating the volume/volume percentage of a solution. In this particular problem, we are working with an aqueous solution of ethyl alcohol. --- **Problem Statement:** An aqueous solution of **ethyl alcohol** is made by transferring **3.90 mL** of liquid ethyl alcohol to a **50.0 mL** volumetric flask, and then adding enough water to fill the flask to the mark. What is the volume/volume percentage of ethyl alcohol in the solution? **Calculation:** To determine the volume/volume (v/v) percentage, use the formula: \[ \text{Volume/volume percentage} = \left( \frac{\text{Volume of solute}}{\text{Volume of solution}} \right) \times 100\% \] Given: - Volume of ethyl alcohol (solute) = 3.90 mL - Volume of the solution (total volume in the flask) = 50.0 mL **Solution:** Substituting the given values into the formula: \[ \text{Volume/volume percentage} = \left( \frac{3.90 \text{ mL}}{50.0 \text{ mL}} \right) \times 100\% = 0.078 \times 100\% = 7.8\% \] --- **Answer:** The volume/volume percentage of ethyl alcohol in the solution is **7.8%**. --- **Interactive Section:** Enter your answer in the provided text box and submit to confirm your calculations. \[ \text{Volume/volume percentage} = \_\_\_\_\_ \% \] [Submit Answer] [Retry Entire Group] (9 more group attempts remaining) --- **Concluding Summary:** Understanding how to calculate v/v percentage composition is critical in various fields such as chemistry, biology, and environmental science. This foundational knowledge ensures that solutions are prepared accurately for experiments and applications.
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