What This Document Is
This document is a practice assessment—specifically, Learning Assessment 3, Version B—from Binghamton University’s General Chemistry II (CHEM 105) course, administered in Spring 2022. It’s designed to test student understanding of key concepts covered in the course around the date of March 31, 2022. The assessment consists of multiple-choice questions and requires the use of a bubble sheet for answers. Only non-graphing calculators are permitted, and students are allotted 60 minutes to complete it.
Why This Document Matters
This learning assessment is valuable for students currently enrolled in or preparing for CHEM 105 at Binghamton University. It serves as a crucial self-check tool to gauge comprehension of topics like chemical equilibrium, acid-base chemistry, and reaction quotients. Reviewing completed assessments, or working through practice versions like this one, helps identify areas needing further study before graded evaluations. It’s intended to mirror the format and difficulty of actual course assessments.
Common Limitations or Challenges
This document is *not* a comprehensive review of all General Chemistry II topics. It focuses specifically on concepts likely covered leading up to March 31, 2022. It does not include detailed explanations of correct answers, or step-by-step solutions. It is a test *of* knowledge, not a teaching tool. Students should use this assessment in conjunction with lecture notes, textbooks, and other course materials.
What This Document Provides
This assessment includes 14 multiple-choice questions covering:
* Ammonia autoionization
* Equilibrium constants (K) and reaction quotients (Q)
* Visualizing solutions of strong bases
* Calculating reaction quotients for specific reactions
* Conjugate acid-base pairs
* Predicting reaction direction based on Q and K
* Acid strength trends
* Applying equilibrium constants to reaction systems
* The effect of temperature on equilibrium (Le Chatelier’s principle)
* Equilibrium expressions for heterogeneous reactions
* The relationship between volume, pressure, and equilibrium (Qp vs. Kp)
This preview *does not* provide the correct answers, detailed explanations, or worked-out solutions to any of the questions. It only presents the questions themselves.
