Solutions LabFactors That Affect How Something Dissolves

Investigate:

• What are the factors that affect how a solution is formed?

• How would you test the factors?

Data Table: Copy the data table and use it while you perform the investigation

Station Factor being tested

Observations Cause

1

2

3

.

Investigate- Station 1

• 1. Pour 200 mL hot water into one beaker and 200 mL ice water into another beaker. Add a tea bag to each.

• a) Record your results.

• b) Describe the relationship between temperature and the rate of solution.

Investigate- Station 2

• 2. Prepare two beakers, each containing equal amounts (about 200 mL) of room temperature water. Obtain two sugar cubes. Crush one and leave the other whole. Simultaneously add the crushed cube to one beaker and the whole cube to the other beaker.

• a) Record your observations. What factor was being studied?

• b) Describe the relationship between that factor and the rate of reaction.

Investigate- Station 3

• 3. Prepare two large test tubes, each containing equal amounts (about 10 mL) of room temperature water. Add a scoop of table salt to each test tube. Using a stopper, place the stopper in only one test tube and shake the solution for 1 minute.

• a. Compare the two test tubes. Describe your observation.

• b. What factor are you testing? Explain how it affects your solutions.

Explain- Analysis

• 1. What is happening at Station 1? What is causing the difference to occur?

• 2 What is happening at Station 2? What is causing the difference to occur?

• 3. What is happening at Station 3? What is causing the difference to occur?

Evaluation-Conclusion

• Write a ½ page summarizing the factors affecting the formation of a solution.