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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Question
In what molar ratio do the titrant and KHP react
Transcribed Image Text:### Experiment: Titration of KHP with NaOH
#### Overview
This experiment involves the titration of potassium hydrogen phthalate (KHP) using a sodium hydroxide (NaOH) solution.
#### Data Collected
**KHP Measurements and Trials:**
1. **KHP 1 (Trial 1):**
- Mass of KHP: 0.3130 g
- Final Buret Reading: 16.72 mL
2. **KHP 2 (Trial 2):**
- Mass of KHP: 0.3040 g
- Final Buret Reading: 31.80 mL
3. **KHP 3 (Trial 3):**
- Mass of KHP: 0.3059 g
- Final Buret Reading: 15.3 mL
**Additional Parameters:**
- Buret was initialized at 0.00 mL for all trials.
- Total volume dispensed during trials varied.
**NaOH Solution:**
- Volume of NaOH used: Not explicitly defined in this document.
- Molarity of NaOH solution: Not provided here.
- Average NaOH Concentration Added: 0.0938M
#### Explanation
This data sheet contains measurements and calculated concentrations for a series of titration trials involving KHP and NaOH. Each trial records the mass of KHP used, the corresponding volume of NaOH dispensed from a buret, and the average concentration of NaOH across trials. This information is essential for determining the molarity of the NaOH solution used in the titration process.
### Conclusion
This experiment demonstrates the practical application of titration in determining the concentration of a solution. The data would typically be used to calculate the exact concentration of NaOH based on standard titration calculations.
Expert Solution
Step 1
Given:
| Trial-1 | Trial-2 | Trial- | |
| Mass of KHP (g) | 0.3130 | 0.3040 | 0.3059 |
| Final burette reading (mL) | 16.72 | 31.80 | 15.30 |
| Initial Burette reading (mL) | 1.20 | 16.72 | 0.00 |
| Volume of NaOH (mL) | 15.52 | 15.08 | 15.30 |
Molarity of NaOH = 0.0988 M
molar mass of KHP = 204.2 g/mol
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