What This Document Is
This is a completed lab report—specifically, the eighth one—from a General Chemistry I Laboratory course (CHM 121) at the College of Staten Island CUNY. It details an experiment focused on precipitating calcium carbonate, exploring the relationship between reactant quantities and product yield. The report includes experimental procedures, observations, data analysis, and conclusions drawn by the student.
Why This Document Matters
This document is intended for the instructor, Illya Nayshevsky, for grading and feedback. It serves as a record of the student’s work and understanding of stoichiometric principles and laboratory techniques. Students in the course may review graded lab reports like this one as examples of expected work, but it represents a *completed* assignment, not instructional material.
Common Limitations or Challenges
This report represents a single student’s attempt at the experiment. It may contain errors or areas for improvement, and should not be used as a substitute for understanding the underlying concepts or performing the experiment independently. It is a specific instance, not a general guide.
What This Document Provides
The full document includes: a stated purpose for the experiment, a description of the theoretical principles (percent yield, double displacement reactions), a detailed account of the experimental method used, a discussion of the results obtained (including a calculated percent yield), a conclusion summarizing the findings, and answers to post-laboratory questions including a balanced chemical equation. This preview *does not* include the balanced equation, the answers to the post-lab questions, or the detailed calculations performed by the student. It also does not include the raw data collected during the experiment.
