Watch the following video to see how this experiment is performed.
A. Heat Capacity of Calorimeter
Fill in the following on your report sheet:
1. Temp. of calorimeter and water before mixing: 22.0 °C
2. Temp. of warm water: 39.0 °C
3-7. (determine on your own, using the data below)
The temperature data for each 15-second interval is given in the table below. Use this to fill out the Temperature versus Time Data on page 145 for Part A. Heat Capacity of Calorimeter
| Time (s) | Temp (°C) |
| 0 | 22.0 |
| 15 | 30.3 |
| 30 | 30.3 |
| 45 | 30.3 |
| 60 | 30.3 |
| 75 | 30.2 |
| 90 | 30.2 |
| 105 | 30.2 |
| 120 | 30.2 |
| 135 | 30.1 |
| 150 | 30.1 |
| 165 | 30.0 |
| 180 | 30.0 |
Use this information to create a graph on page 146. Determine the maximum temperature of the mixture and use that value to calculate the rest of Part A (3-7.). An example calculation is given in the Discussion.
B. Heat of Neutralization of HCl-NaOH
Fill in the following on your report sheet:
1. Temp. of calorimeter and NaOH: 22.2 °C
Temp. of HCl: 22.2 °C
2-9. (determine on your own, using the data below)
The temperature data for each 15-second interval is given in the table below. Use this to fill out the Temperature versus Time Data on page 145 for Part B. Heat of Neutralization of NaOH-HCl
| Time (s) | Temp (°C) |
| 0 | 22.2 |
| 15 | 29.2 |
| 30 | 29.1 |
| 45 | 29.0 |
| 60 | 28.9 |
| 75 | 28.8 |
| 90 | 28.7 |
| 105 | 28.7 |
| 120 | 28.7 |
| 135 | 28.7 |
| 150 | 28.7 |
| 165 | 28.7 |
| 180 | 28.6 |
Use this information to create a graph on page 147. Determine the maximum temperature of the mixture and use that value to calculate the rest of Part B (2-9.). An example calculation is given in the Discussion.
C. Heat of Neutralization of CH3COOH-NaOH
Fill in the following on your report sheet:
1. Temperature of calorimeter and NaOH: 22.1°C
2-8. (determine on your own, using the data below)
The temperature data for each 15-second interval is given in the table below. Use this to fill out the Temperature versus Time Data on page 145 for Part C. Heat of Neutralization of NaOH-CH3COOH
| Time (s) | Temp (°C) |
| 0 | 22.1 |
| 15 | 28.1 |
| 30 | 28.0 |
| 45 | 28.0 |
| 60 | 27.9 |
| 75 | 27.9 |
| 90 | 27.8 |
| 105 | 27.8 |
| 120 | 27.8 |
| 135 | 27.8 |
| 150 | 27.8 |
| 165 | 27.7 |
| 180 | 27.7 |
Use this information to create a graph on page 148. Determine the maximum temperature of the mixture and use that value to calculate the rest of Part C (2-8.). An example calculation is given in the Discussion.
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