Effect of Solvent: 1. Record the results.
1. H2O =
2. alcohol =
3. glycerin =
2. In which liquid is the salt most soluble?
3. Using the concept of "Like dissolves like," explain why you got the results you did.
4. Explain how the choice of solvent affects the dissolving process.
Effect of Pulverizing:
1. Record of dissolving times.
1. crystal =
2. pulverized =
2. Why are the dissolving rates different?
Effect of Temperature:
1. Record of dissolving times.
1. cold =
2. hot
2. Using the concepts of kinetic energy, describe why you found the results you did.
Effect of Stirring:
1. Record the times necessary to dissolve each sample.
2. Record of dissolving time.
1. stirred =
2. unstirred =
3. Perform the experiment again using hot tap water this time. Are there any differences in the results between the
cold water experiment and the hot water experiment? Explain.