What This Document Is
This is a pre-laboratory exercise sheet for Lab 6 in Survey of Chemistry II with Lab (CHEM 1152K) at Georgia Gwinnett College. The lab focuses on the technique of serial dilution, specifically applied to food dye. This pre-lab exercise prepares students for the practical aspects of the experiment.
Why This Document Matters
This document is essential for students enrolled in CHEM 1152K *before* attending Lab 6. Successful completion of the pre-lab exercises is required and contributes to the overall lab grade. It emphasizes the importance of accurate pipetting skills, which are foundational for many chemistry experiments. The document highlights the cost and delicate nature of the equipment used, reinforcing the need for careful handling.
Common Limitations or Challenges
This pre-lab does not *perform* the serial dilution; it only prepares you to do so. It doesn’t include experimental data, analysis, or conclusions from the lab itself. It also assumes a basic understanding of laboratory safety procedures and general chemistry principles. This preview does not include the video link or the full set of pre-lab questions.
What This Document Provides
The full document includes: a detailed explanation of why accurate pipetting is critical in chemistry, particularly for molecular projects; a reminder of proper micropipette usage, including a link to a helpful instructional video; a list of “do not” rules for using micropipettes to prevent damage and ensure accuracy; guidance on correct pipette technique, including volume adjustment, tip seating, and fluid withdrawal/expulsion; and specific pre-laboratory exercises (questions) to be completed before the lab session.
