Data Analysis & Calculations
Instructions: Record measurements into the data table. Be sure to record all values directly from the balance & adjust for proper significant figures where applicable.
Unknown Metal Cylinder ID ________
|
|
Trial 1 |
Trial 2 |
|---|---|---|
|
Mass of Unknown Metal Cylinder (g) |
|
|
|
Mass of Styrofoam Cups & Lid (g) |
|
|
|
Mass of Styrofoam Cups, Lid + Water (g) |
|
|
|
Mass of Water (g) |
|
|
|
Initial Temperature of Water (°C) |
|
|
|
Initial Temperature of Unknown Metal Cylinder (°C) |
|
|
|
Final temperature of Water + Unknown Metal Cylinder (°C) |
|
|
Show calculations for each of the following:
Trial 1:
- Mass of Water (g)
- qwater (J)
- qmetal (J)
- Specific Heat of unknown metal (J/g°C)
Trial 2:
- Mass of Water (g)
- qwater (J)
- qmetal (J)
- Specific Heat of unknown metal (J/g°C)
Use the chart below of known specific heat capacities to identify your metal.
| Metal | Specific Heat Capacity |
| Aluminum | 0.897 J/g°C |
| Copper | 0.385 J/g°C |
| Iron | 0.449 J/g°C |
| Lead | 0.128 J/g°C |
| Zinc | 0.388 J/g°C |
| Tin | 0.228 J/g°C |
| Nickel | 0.444 J/g°C |
| Brass | 0.380 J/g°C |
| Silver | 0.235 J/g°C |
| Gold | 0.129 J/g°C |
