**Title: Calculating Molarity of Ethanol Solution****Problem Statement:**An aqueous solution contains 6.00% by mass ethanol, \( CH_3CH_2OH \), and has a density of 0.988 g/mL. The task is to determine the molarity of ethanol in the solution.**Steps to Solve:**1. **Identify the percentage by mass**: The solution is 6.00% ethanol by mass. This means 6.00 grams of ethanol are present in 100 grams of solution. 2. **Determine the density**: The solution has a density of 0.988 g/mL. Using this, convert the total mass of the solution to volume.3. **Convert mass to volume**: \[ \text{Volume of solution} = \frac{\text{Mass of solution}}{\text{Density of solution}} = \frac{100\, \text{g}}{0.988\, \text{g/mL}} \]4. **Calculate the moles of ethanol**: The molar mass of ethanol (\( CH_3CH_2OH \)) is 46.07 g/mol. \[ \text{Moles of ethanol} = \frac{\text{Mass of ethanol}}{\text{Molar mass of ethanol}} = \frac{6\, \text{g}}{46.07\, \text{g/mol}} \]5. **Calculate molarity**: \[ \text{Molarity} = \frac{\text{Moles of ethanol}}{\text{Volume of solution in liters}} \]6. **Submit your calculated answer** in the provided input box and click on "Submit Answer".**Buttons/Options:**- **Submit Answer**: Click this button after entering your calculated molarity to see if it's correct.- **Try Another Version**: If your answer is not correct, you can click this button to attempt another version of the problem. You have 7 attempts remaining to solve this problem.Use the [References] link to access important values if needed for the question.

Any solution's mass percentage (w/w) reflects the solute's mass dissolved into specified volume used…

Answered: An aqueous solution is 6.00% by mass…

An aqueous solution is 6.00% by mass ethanol, CH,CH,OH, and has a density of 0.988 g/mL. The molarity of ethanol in the solution is М.

Introductory Chemistry: A Foundation

8th Edition

ISBN:9781285199030

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 114AP

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

**Title: Calculating Molarity of Ethanol Solution**

**Problem Statement:**
An aqueous solution contains 6.00% by mass ethanol, \( CH_3CH_2OH \), and has a density of 0.988 g/mL. The task is to determine the molarity of ethanol in the solution.

**Steps to Solve:**
1. **Identify the percentage by mass**: The solution is 6.00% ethanol by mass. This means 6.00 grams of ethanol are present in 100 grams of solution.

2. **Determine the density**: The solution has a density of 0.988 g/mL. Using this, convert the total mass of the solution to volume.

3. **Convert mass to volume**:
\[ \text{Volume of solution} = \frac{\text{Mass of solution}}{\text{Density of solution}} = \frac{100\, \text{g}}{0.988\, \text{g/mL}} \]

4. **Calculate the moles of ethanol**:
The molar mass of ethanol (\( CH_3CH_2OH \)) is 46.07 g/mol.
\[ \text{Moles of ethanol} = \frac{\text{Mass of ethanol}}{\text{Molar mass of ethanol}} = \frac{6\, \text{g}}{46.07\, \text{g/mol}} \]

5. **Calculate molarity**:
\[ \text{Molarity} = \frac{\text{Moles of ethanol}}{\text{Volume of solution in liters}} \]

6. **Submit your calculated answer** in the provided input box and click on "Submit Answer".

**Buttons/Options:**
- **Submit Answer**: Click this button after entering your calculated molarity to see if it's correct.
- **Try Another Version**: If your answer is not correct, you can click this button to attempt another version of the problem.

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