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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![**Educational Website Content:**
---
**Understanding Reaction Rates and Solution Preparation**
**Question:**
The reaction rate decreases.
- O
---
**Question:**
What mass of NaCl in grams is needed to prepare 2,500 g of 1.5% (m/m) NaCl solution?*
Options:
1. O 380 g NaCl
2. O 38 g NaCl
3. O 1.67 g NaCl
4. O 3.8 g NaCl
---
**Question:**
You add solute to a solution and notice that all the solute crystallizes. The original solution was __________.
- Follow-up content not visible in the image.
---
**Explanation:**
In this section, students are learning how to determine the mass of sodium chloride (NaCl) required to prepare a specific concentration of a solution. The question presented asks what mass of NaCl is needed to prepare 2,500 grams of a 1.5% (m/m) NaCl solution.
To solve this, we use the formula:
\[ \text{Mass of solute} = \left( \frac{\text{Percentage}}{100} \right) \times \text{Total mass of solution} \]
For this specific problem:
\[ \text{Mass of NaCl} = \left( \frac{1.5}{100} \right) \times 2500 \, \text{g} \]
\[ \text{Mass of NaCl} = 0.015 \times 2500 \, \text{g} \]
\[ \text{Mass of NaCl} = 37.5 \, \text{g} \]
Therefore, the correct answer is approximately 38 g NaCl.
This type of problem helps students understand practical applications of percentage solutions in chemistry.
**Note:**
Further information for the follow-up question is needed to provide a comprehensive explanation.
---
**Graphs/Diagrams:**
There are no graphs or diagrams included with this content.
---
End of content.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F607cced0-c3e1-4338-aeaf-f61d5cbda073%2F43892314-aead-4fb3-9091-b01a1e3ebf58%2F0boo2oh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Educational Website Content:**
---
**Understanding Reaction Rates and Solution Preparation**
**Question:**
The reaction rate decreases.
- O
---
**Question:**
What mass of NaCl in grams is needed to prepare 2,500 g of 1.5% (m/m) NaCl solution?*
Options:
1. O 380 g NaCl
2. O 38 g NaCl
3. O 1.67 g NaCl
4. O 3.8 g NaCl
---
**Question:**
You add solute to a solution and notice that all the solute crystallizes. The original solution was __________.
- Follow-up content not visible in the image.
---
**Explanation:**
In this section, students are learning how to determine the mass of sodium chloride (NaCl) required to prepare a specific concentration of a solution. The question presented asks what mass of NaCl is needed to prepare 2,500 grams of a 1.5% (m/m) NaCl solution.
To solve this, we use the formula:
\[ \text{Mass of solute} = \left( \frac{\text{Percentage}}{100} \right) \times \text{Total mass of solution} \]
For this specific problem:
\[ \text{Mass of NaCl} = \left( \frac{1.5}{100} \right) \times 2500 \, \text{g} \]
\[ \text{Mass of NaCl} = 0.015 \times 2500 \, \text{g} \]
\[ \text{Mass of NaCl} = 37.5 \, \text{g} \]
Therefore, the correct answer is approximately 38 g NaCl.
This type of problem helps students understand practical applications of percentage solutions in chemistry.
**Note:**
Further information for the follow-up question is needed to provide a comprehensive explanation.
---
**Graphs/Diagrams:**
There are no graphs or diagrams included with this content.
---
End of content.
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