**Report Sheet: Experiment 15** **Titration of Acids and Bases** **A. Standardization of Sodium Hydroxide (NaOH) Solution** | | Trial 1 | Trial 2 | Trial 3 | |---------------------|-----------|-----------|-----------| | Mass of KHP | 0.4923 g | 0.4570 g | 0.4360 g | | Mass of KHP used | 0.4923 g | 0.4570 g | 0.4360 g | | Final buret reading | 21 mL | 40.5 mL | 41.7 mL | | Initial buret reading | 0 mL | 21 mL | 24.1 mL | | mL of NaOH used | 21 mL | 19.5 mL | 17.6 mL | | Molarity of NaOH | 0.1149 | 0.1095 | 0.1213 | Average molarity: **0.1152** Standard deviation: (not provided) _Show your calculations for molarity and standard deviation_ (hand calculations and formulae appear on the sheet) **B. Analysis of an Unknown Acid** | | Trial 1 | Trial 2 | Trial 3 | |---------------------|-----------|-----------|-----------| | Mass of unknown | 0.6109 g | 0.5296 g | 0.5708 g | | Mass of unknown used| 0.6109 g | 0.5298 g | 0.5708 g | | Final buret reading | 14.4 mL | 37.7 mL | 39.4 mL | | Initial buret reading | 0 mL | 26 mL | 26.5 mL | | mL of NaOH used | 14.4 mL | 11.7 mL | 12.9 mL | | Mass of KHP in unknown | | | | | Percent of KHP in unknown | | | | _M\(_1\)V
**Report Sheet: Experiment 15** **Titration of Acids and Bases** **A. Standardization of Sodium Hydroxide (NaOH) Solution** | | Trial 1 | Trial 2 | Trial 3 | |---------------------|-----------|-----------|-----------| | Mass of KHP | 0.4923 g | 0.4570 g | 0.4360 g | | Mass of KHP used | 0.4923 g | 0.4570 g | 0.4360 g | | Final buret reading | 21 mL | 40.5 mL | 41.7 mL | | Initial buret reading | 0 mL | 21 mL | 24.1 mL | | mL of NaOH used | 21 mL | 19.5 mL | 17.6 mL | | Molarity of NaOH | 0.1149 | 0.1095 | 0.1213 | Average molarity: **0.1152** Standard deviation: (not provided) _Show your calculations for molarity and standard deviation_ (hand calculations and formulae appear on the sheet) **B. Analysis of an Unknown Acid** | | Trial 1 | Trial 2 | Trial 3 | |---------------------|-----------|-----------|-----------| | Mass of unknown | 0.6109 g | 0.5296 g | 0.5708 g | | Mass of unknown used| 0.6109 g | 0.5298 g | 0.5708 g | | Final buret reading | 14.4 mL | 37.7 mL | 39.4 mL | | Initial buret reading | 0 mL | 26 mL | 26.5 mL | | mL of NaOH used | 14.4 mL | 11.7 mL | 12.9 mL | | Mass of KHP in unknown | | | | | Percent of KHP in unknown | | | | _M\(_1\)V
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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what is the mass of KHP in unknown and what is thr percent KHP in unknown?

Transcribed Image Text:**Report Sheet: Experiment 15**
**Titration of Acids and Bases**
**A. Standardization of Sodium Hydroxide (NaOH) Solution**
| | Trial 1 | Trial 2 | Trial 3 |
|---------------------|-----------|-----------|-----------|
| Mass of KHP | 0.4923 g | 0.4570 g | 0.4360 g |
| Mass of KHP used | 0.4923 g | 0.4570 g | 0.4360 g |
| Final buret reading | 21 mL | 40.5 mL | 41.7 mL |
| Initial buret reading | 0 mL | 21 mL | 24.1 mL |
| mL of NaOH used | 21 mL | 19.5 mL | 17.6 mL |
| Molarity of NaOH | 0.1149 | 0.1095 | 0.1213 |
Average molarity: **0.1152**
Standard deviation: (not provided)
_Show your calculations for molarity and standard deviation_ (hand calculations and formulae appear on the sheet)
**B. Analysis of an Unknown Acid**
| | Trial 1 | Trial 2 | Trial 3 |
|---------------------|-----------|-----------|-----------|
| Mass of unknown | 0.6109 g | 0.5296 g | 0.5708 g |
| Mass of unknown used| 0.6109 g | 0.5298 g | 0.5708 g |
| Final buret reading | 14.4 mL | 37.7 mL | 39.4 mL |
| Initial buret reading | 0 mL | 26 mL | 26.5 mL |
| mL of NaOH used | 14.4 mL | 11.7 mL | 12.9 mL |
| Mass of KHP in unknown | | | |
| Percent of KHP in unknown | | | |
_M\(_1\)V
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