What This Document Is
This document represents the pre-lab questions and report sheet for Experiment 1 in General Chemistry I (CHE 111L) at Eastern Kentucky University. It focuses on fundamental laboratory skills – measurements and density determination. The document is designed to prepare students for the practical aspects of the experiment and to record their findings. It combines conceptual questions with spaces for data recording and analysis.
Why This Document Matters
This lab is crucial for students beginning their chemistry coursework. Accurate measurements and understanding density are foundational to nearly all subsequent experiments and chemical calculations. Students enrolled in CHE 111L will use this document *before* performing the experiment to demonstrate preliminary understanding, and *during* and *after* the experiment to record data and report results. Successful completion of this lab, and therefore this document, is a key component of the course grade.
Common Limitations or Challenges
This document serves as a guide and record, but it does *not* provide a comprehensive explanation of chemistry principles. It assumes students have received prior instruction on topics like significant figures and units. It also doesn’t replace the need for careful observation, proper lab technique, and a thorough understanding of safety procedures. This preview only shows the questions and report sheet structure; it does not include the experimental procedure itself.
What This Document Provides
The full document includes:
* **20 Pre-Lab Questions:** Assessing understanding of intensive properties, balance operation, significant figures, volume measurement with different devices (burets, graduated cylinders, beakers), uncertainty, Archimedes’ principle, and percent mass calculations.
* **Report Sheet Sections:** Dedicated spaces for recording mass measurements of a penny, volume determinations, and density calculations.
* **Grading Rubric:** Outlines the criteria for evaluating student performance, including completeness, legibility, and adherence to safety protocols.
* **Specific Instructions:** Guidance on reporting data to the correct number of decimal places (particularly for percentage calculations).
* **Visual Aids:** Sketches of experimental setups (beakers, graduated cylinders, eggs in beakers) to aid in understanding concepts.