What is the appropriate drying temperature and time range to determine dry mass?

The appropriate drying temperature for determining dry mass is typically between 105-110 degrees Celsius (221-230 degrees Fahrenheit). The drying time range can vary depending on the material being dried, but it is generally recommended to dry the sample for at least 24 hours to ensure all moisture has been removed.

Drying Temperature Range:

- 105-110°C (221-230°F)

Drying Time Range:

- 2-3 hours

Specific Instructions:

1. Place the sample in a pre-weighed drying dish.
2. Dry the sample in an oven at the specified temperature for the recommended time.
3. Remove the dish from the oven and place it in a desiccator to cool.
4. Weigh the dish and sample and record the mass.
5. Repeat drying until the weight of the dish and sample stabilizes (the difference between two consecutive weighings is less than 0.1% of the sample's mass).

Note:

- The temperature and time may vary slightly depending on the material being dried and the specific requirements of the experiment.
- It is important to accurately measure the initial and final weights of the dish and sample to obtain a reliable dry mass.