SUMMARY
The solution to AP Chemistry 2006 Form A Free Response Question #5 identifies the compounds involved as X = Na2CO3, Y = KCl, and Z = MgSO4. The reaction presented is OH- + Mg+2 -> Mg(OH)2, indicating the formation of magnesium hydroxide. While the participant correctly states that X has a pH greater than 7 due to the presence of OH-, they acknowledge that additional context is necessary to substantiate this claim, specifically detailing the source of the hydroxide ions.
PREREQUISITES
- Understanding of acid-base chemistry and pH levels
- Familiarity with ionic compounds and their reactions
- Knowledge of precipitation reactions, particularly involving magnesium hydroxide
- Ability to interpret AP Chemistry free response questions
NEXT STEPS
- Review the principles of acid-base reactions and pH calculation
- Study the solubility rules for ionic compounds, focusing on magnesium salts
- Learn about the formation of precipitates in chemical reactions
- Practice solving AP Chemistry free response questions for better exam preparation
USEFUL FOR
High school students preparing for the AP Chemistry exam, educators teaching AP Chemistry, and anyone seeking to improve their understanding of acid-base reactions and ionic compound behavior.