**Table: pH Changes in Various Solutions After Adding NaOH**This educational chart displays the initial pH of different solutions and their pH after adding 5 and 10 drops of NaOH, with the goal of assessing their buffering capacity.| Solution Type | Initial pH | pH after 5 drops NaOH | pH after 10 drops NaOH | pH Change | Buffer (Y or N) ||-----------------|------------|-----------------------|------------------------|-----------|----------------|| H₂O | 5.7 | 11.7 | 11.9 | | Choose... || 0.1 M NaCl | 6.9 | 13.1 | 13.4 | | Choose... || High pH buffer | 9.9 | 10.1 | 10.3 | | Choose... || Low pH buffer | 3.8 | 4.1 | 4.4 | | Choose... |**Description:**- **H₂O (Water)**: Starts with a pH of 5.7. After the addition of NaOH, the pH rises significantly to 11.7 and 11.9 after 5 and 10 drops, respectively.- **0.1 M NaCl**: Initial pH is 6.9. The pH increases to 13.1 after 5 drops and 13.4 after 10 drops of NaOH.- **High pH Buffer**: Initial pH is 9.9. There’s a slight increase to 10.1 and 10.3 after adding NaOH, indicating a buffering effect.- **Low pH Buffer**: Begins with a pH of 3.8. The pH changes slightly to 4.1 and then 4.4, also showing a buffering effect.This table helps illustrate the concept of buffering by showing how pH changes are minimized in buffered solutions compared to non-buffered ones.

To calculate change in pH and to determine whether the given solutions are buffer solution or not.

pH after 5 drops NaOH pH after 10 drops NaOH Initial pH pH change Buffer (Y or N Choose... H20 5.7 11.7 11.9 Choose... Choose... 0.1 M Nacl 6.9 13.1 13.4 Choose... - Choose... High pH buffer 9.9 10.1 10.3 Choose... Choose... Low pH buffer 3.8 4.1 4.4 Choose...

pH after 5 drops NaOH pH after 10 drops NaOH Initial pH pH change Buffer (Y or N Choose... H20 5.7 11.7 11.9 Choose... Choose... 0.1 M Nacl 6.9 13.1 13.4 Choose... - Choose... High pH buffer 9.9 10.1 10.3 Choose... Choose... Low pH buffer 3.8 4.1 4.4 Choose...

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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**Table: pH Changes in Various Solutions After Adding NaOH**

This educational chart displays the initial pH of different solutions and their pH after adding 5 and 10 drops of NaOH, with the goal of assessing their buffering capacity.

| Solution Type | Initial pH | pH after 5 drops NaOH | pH after 10 drops NaOH | pH Change | Buffer (Y or N) |
|-----------------|------------|-----------------------|------------------------|-----------|----------------|
| H₂O | 5.7 | 11.7 | 11.9 | | Choose... |
| 0.1 M NaCl | 6.9 | 13.1 | 13.4 | | Choose... |
| High pH buffer | 9.9 | 10.1 | 10.3 | | Choose... |
| Low pH buffer | 3.8 | 4.1 | 4.4 | | Choose... |

**Description:**
- **H₂O (Water)**: Starts with a pH of 5.7. After the addition of NaOH, the pH rises significantly to 11.7 and 11.9 after 5 and 10 drops, respectively.
- **0.1 M NaCl**: Initial pH is 6.9. The pH increases to 13.1 after 5 drops and 13.4 after 10 drops of NaOH.
- **High pH Buffer**: Initial pH is 9.9. There’s a slight increase to 10.1 and 10.3 after adding NaOH, indicating a buffering effect.
- **Low pH Buffer**: Begins with a pH of 3.8. The pH changes slightly to 4.1 and then 4.4, also showing a buffering effect.

This table helps illustrate the concept of buffering by showing how pH changes are minimized in buffered solutions compared to non-buffered ones.

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