### Determining the Mass of KNO₃ in a Saturated Solution at 50°CTo determine the mass of KNO₃ (potassium nitrate) in a 100 g saturated solution at 50°C, refer to the provided solubility graph. The solubility graph plots the temperature (in °C) on the x-axis and the solubility (in grams of solute per 100 grams of H₂O) on the y-axis. The graph contains solubility curves for several solutes, including KI, NH₄Cl, KNO₃, and KClO₃.#### Steps to Find the Mass of KNO₃:1. **Identify the KNO₃ curve on the graph.** This is typically marked with the chemical formula KNO₃.2. **Locate 50°C on the x-axis.** 3. **Move vertically from 50°C until you intersect the KNO₃ solubility curve.**4. **From this point of intersection, move horizontally to the y-axis to determine the solubility value.** ### Detailed Explanation of the Graph:- **X-Axis (Temperature, °C):** Spanning from 0 to 100°C.- **Y-Axis (Solubility, grams per 100 g of H₂O):** Spanning from 0 to 100 g per 100 g of water.- **Solubility Curves:** Each marked with the respective solute (KI, NH₄Cl, KNO₃, KClO₃).#### Example:For KNO₃ at 50°C:1. Locate 50°C on the x-axis.2. Follow the vertical line up to the KNO₃ curve.3. From the intersection, follow the horizontal line to the solubility value on the y-axis. 4. The value at this point is approximately 80 grams.### Conclusion:At 50°C, the solubility of KNO₃ is approximately 80 grams per 100 grams of water. Therefore, the mass of KNO₃ in a 100 g saturated solution at this temperature is 80 grams.**Calculation Prompt:**```Round to the nearest 5 grams.mass KNO₃ = [?] g```Here, you input the determined value of 80 grams, rounded as

The given graph provides us with the solubility of KNO3 in 100g of water at varying temperatures.

100 KI 90 80 70 KNO3 60 50 40 30 20 10 Solute per 100 g of H₂O (g) 0 NH,CI KCIO 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) What mass of KNO3 is in a 100. g of a saturated solution at 50 °C? mass KNO3 = [?] g Enter Round to the nearest 5 grams.

100 KI 90 80 70 KNO3 60 50 40 30 20 10 Solute per 100 g of H₂O (g) 0 NH,CI KCIO 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) What mass of KNO3 is in a 100. g of a saturated solution at 50 °C? mass KNO3 = [?] g Enter Round to the nearest 5 grams.

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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Stoichiometry

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Question

### Determining the Mass of KNO₃ in a Saturated Solution at 50°C

To determine the mass of KNO₃ (potassium nitrate) in a 100 g saturated solution at 50°C, refer to the provided solubility graph. The solubility graph plots the temperature (in °C) on the x-axis and the solubility (in grams of solute per 100 grams of H₂O) on the y-axis. The graph contains solubility curves for several solutes, including KI, NH₄Cl, KNO₃, and KClO₃.

#### Steps to Find the Mass of KNO₃:
1. **Identify the KNO₃ curve on the graph.** This is typically marked with the chemical formula KNO₃.
2. **Locate 50°C on the x-axis.**
3. **Move vertically from 50°C until you intersect the KNO₃ solubility curve.**
4. **From this point of intersection, move horizontally to the y-axis to determine the solubility value.**

### Detailed Explanation of the Graph:
- **X-Axis (Temperature, °C):** Spanning from 0 to 100°C.
- **Y-Axis (Solubility, grams per 100 g of H₂O):** Spanning from 0 to 100 g per 100 g of water.
- **Solubility Curves:** Each marked with the respective solute (KI, NH₄Cl, KNO₃, KClO₃).

#### Example:
For KNO₃ at 50°C:
1. Locate 50°C on the x-axis.
2. Follow the vertical line up to the KNO₃ curve.
3. From the intersection, follow the horizontal line to the solubility value on the y-axis.
4. The value at this point is approximately 80 grams.

### Conclusion:
At 50°C, the solubility of KNO₃ is approximately 80 grams per 100 grams of water. Therefore, the mass of KNO₃ in a 100 g saturated solution at this temperature is 80 grams.

**Calculation Prompt:**
```
Round to the nearest 5 grams.
mass KNO₃ = [?] g
```
Here, you input the determined value of 80 grams, rounded as

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