Science practice 26

1. Based on the data for water in Table 8.3, which of the following statements do the data NOT support?

2. In the experiment, 80 mL of orange juice with 4 cm² exposed was left in the open for one week. Using the data in Table 8.3, how much of the original liquid was left at the end of the week?

3. Before the experiment, students made the following hypotheses:

Student 1: "Since I can smell rubbing alcohol as soon as I open the bottle, I expect it to have a greater rate of evaporation in air."

Student 2: "Since orange juice and liquid bleach are composed primarily of water, their evaporation rates will be close to that of water."

Student 3: "Surface area should not affect the rate of evaporation of a liquid because only the total amount of liquid affects evaporation rates."

Which of the hypotheses are supported by the data collected?

4. If 80.0 mL of rubbing alcohol are placed in a container with 20 cm² exposed, what would be the approximate amount of liquid left in the container after one week?

5. Using Figure 8.5, what is the approximate number of weeks required for 80 mL of rubbing alcohol to evaporate completely from a container with a 4 cm² exposure?

6. According to Figure 8.5, what is the rate of evaporation of water with a 4 cm² exposed surface area?

7. Which of the following conclusions may be supported by Figure 8.5?

8. If data for vegetable oil were added to Figure 8.5, one would most likely see:

9. Which of the following statements about rubbing alcohol is supported by the data?

10. Although the graph for rubbing alcohol displays a general downward trend, the variations in the data could possibly be attributed to all of the following EXCEPT: