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Determine the amount in grams of KCI that exists in 20.3 g of a solution that contains 1.14 % KCI by mass

Determine the amount in grams of KCI that exists in 20.3 g of a solution that contains 1.14 % KCI by mass

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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**Title: Calculating Grams of KCl in a Solution** **Objective:** Determine the amount in grams of KCl present in 20.3 grams of a solution that contains 1.14% KCl by mass. **Instructions:** 1. **Starting Amount:** - Enter the initial amount of the solution: 20.3 g 2. **Calculation Setup:** - Use the formula: \[ \text{grams of KCl} = \text{starting amount of solution} \times \left(\frac{\% \text{KCl by mass}}{100}\right) \] - Fill in the following values: - Starting amount of solution: 20.3 g - Percentage of KCl by mass: 1.14% 3. **Steps to Solve:** - Multiply 20.3 g by \( \frac{1.14}{100} \) - This fraction converts the percentage into a decimal for calculation. 4. **Tools Provided:** - Use the interactive boxes to add factors and complete the calculation. - Options include buttons to multiply, divide, and reset calculations if needed. 5. **Calculations:** - You can see selectable numerical values like 20.3, 1.14, and mathematical symbols for structuring your calculation. 6. **Final Answer:** - The final calculated number will provide the grams of KCl in the solution. **Note:** This exercise helps in understanding how to calculate the concentration of a component within a solution, important for chemistry lab practices and various applications in scientific research.
Transcribed Image Text:**Title: Calculating Grams of KCl in a Solution** **Objective:** Determine the amount in grams of KCl present in 20.3 grams of a solution that contains 1.14% KCl by mass. **Instructions:** 1. **Starting Amount:** - Enter the initial amount of the solution: 20.3 g 2. **Calculation Setup:** - Use the formula: \[ \text{grams of KCl} = \text{starting amount of solution} \times \left(\frac{\% \text{KCl by mass}}{100}\right) \] - Fill in the following values: - Starting amount of solution: 20.3 g - Percentage of KCl by mass: 1.14% 3. **Steps to Solve:** - Multiply 20.3 g by \( \frac{1.14}{100} \) - This fraction converts the percentage into a decimal for calculation. 4. **Tools Provided:** - Use the interactive boxes to add factors and complete the calculation. - Options include buttons to multiply, divide, and reset calculations if needed. 5. **Calculations:** - You can see selectable numerical values like 20.3, 1.14, and mathematical symbols for structuring your calculation. 6. **Final Answer:** - The final calculated number will provide the grams of KCl in the solution. **Note:** This exercise helps in understanding how to calculate the concentration of a component within a solution, important for chemistry lab practices and various applications in scientific research.
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