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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![**Transcription and Explanation for Educational Website**
---
**Problem Statement**
Determine the amount in **grams of KCl** that exists in **20.3 g of a solution** containing **1.14 % KCl by mass**.
**Instructions**
1. Identify the starting amount of KCl in grams.
2. Use the given percentage to calculate the total mass of KCl in the solution.
3. Use the conversion factors correctly to solve the problem.
**Equation Setup**
The problem can be broken down into a multiplication equation involving the starting amount and conversion factors. Set up the equation as follows:
- **Starting Amount:** [Input Box] [Input Box]
- **Conversion Factor:** Multiply by [Fraction Input Box]
**Interface Description**
- **Add Factor Button:** Allows you to add additional conversion factors in the equation.
- **Answer Box:** Provides a space to input your calculated answer.
- **Reset Button:** Clears all input fields for a fresh start.
**Available Numbers and Units**
- Numbers available: 23.1, 0.272, 6.022 × 10²³, 17.8, 74.55, 20.3, 1.14, 0.014, 100, 1, 1450, 0.231.
- Unit choices:
- Red: "g KCl," "mol KCl," "%m KCl," "g solution," "g KCl/mol"
- Blue: Available numbers
**Tips**
- Ensure you select the correct number and unit for each input box.
- Multiply the starting amount of the solution (20.3 g) by the percentage of KCl (1.14%) to find the grams of KCl.
- Use significant figures as needed to match the problem's precision requirements.
**Additional Resources**
- Tap or pull up for further explanations, examples, or clarifications about solving percentage by mass problems.
---](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6a85ba4d-6f5c-41bf-97e5-182adb23b838%2Ffe7d686b-7cba-4499-9e63-79a4160e866c%2Fzgue41_processed.png&w=3840&q=75)
Transcribed Image Text:**Transcription and Explanation for Educational Website**
---
**Problem Statement**
Determine the amount in **grams of KCl** that exists in **20.3 g of a solution** containing **1.14 % KCl by mass**.
**Instructions**
1. Identify the starting amount of KCl in grams.
2. Use the given percentage to calculate the total mass of KCl in the solution.
3. Use the conversion factors correctly to solve the problem.
**Equation Setup**
The problem can be broken down into a multiplication equation involving the starting amount and conversion factors. Set up the equation as follows:
- **Starting Amount:** [Input Box] [Input Box]
- **Conversion Factor:** Multiply by [Fraction Input Box]
**Interface Description**
- **Add Factor Button:** Allows you to add additional conversion factors in the equation.
- **Answer Box:** Provides a space to input your calculated answer.
- **Reset Button:** Clears all input fields for a fresh start.
**Available Numbers and Units**
- Numbers available: 23.1, 0.272, 6.022 × 10²³, 17.8, 74.55, 20.3, 1.14, 0.014, 100, 1, 1450, 0.231.
- Unit choices:
- Red: "g KCl," "mol KCl," "%m KCl," "g solution," "g KCl/mol"
- Blue: Available numbers
**Tips**
- Ensure you select the correct number and unit for each input box.
- Multiply the starting amount of the solution (20.3 g) by the percentage of KCl (1.14%) to find the grams of KCl.
- Use significant figures as needed to match the problem's precision requirements.
**Additional Resources**
- Tap or pull up for further explanations, examples, or clarifications about solving percentage by mass problems.
---
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