Question 1. Can you confirm if my work is correct, if not can you show me where I went wrong? **Educational Website Transcription:**---**Q1.** A beaker containing 28.128 g of KCl was dissolved in 268.011 g of water. Calculate the percent by mass of KCl in the solution._Working Solution:_1. Total mass of solution = 28.128 g (KCl) + 268.011 g (water) = 296.139 g2. Percent by mass of KCl = (28.128 g / 296.139 g) × 100 = 9.49%**Q2.** A beaker containing 28.6 mL of acetone was added to a beaker containing 228.2 mL of ethanol. Calculate the percent by mass of acetone in the solution.- **Density of acetone** = 0.791 g/mL- **Density of ethanol** = 0.789 g/mL---Additional details or diagrams were not included in the text, so only the provided information has been transcribed and explained.

Answered: Question 1. Can you confirm if my work…

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 2A

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Question 1. Can you confirm if my work is correct, if not can you show me where I went wrong?

**Educational Website Transcription:**

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**Q1.** A beaker containing 28.128 g of KCl was dissolved in 268.011 g of water. Calculate the percent by mass of KCl in the solution.

_Working Solution:_

1. Total mass of solution = 28.128 g (KCl) + 268.011 g (water) = 296.139 g
2. Percent by mass of KCl = (28.128 g / 296.139 g) × 100 = 9.49%

**Q2.** A beaker containing 28.6 mL of acetone was added to a beaker containing 228.2 mL of ethanol. Calculate the percent by mass of acetone in the solution.

- **Density of acetone** = 0.791 g/mL
- **Density of ethanol** = 0.789 g/mL

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Additional details or diagrams were not included in the text, so only the provided information has been transcribed and explained.

Expert Solution

Step 1: Formula

Mass percent of component in a solution is the mass of the component present per 100 g of the solution.

So, the formula for the mass percent = $fraction numerator M a s s space o f space t h e space c o m p o n e n t over denominator T o t a l space m a s s space o f space t h e space s o l u t i o n end fraction cross times 100 percent sign$ .

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