What This Document Is
This document outlines the laboratory component for Week Three of CHEM 120, Introduction to General, Organic & Biological Chemistry with Lab at Chamberlain University. It focuses on the principles of stoichiometry – the quantitative relationship between reactants and products in chemical reactions – and solution preparation techniques. The lab work utilizes a simulation environment (Labster) to explore these concepts.
Why This Document Matters
This lab is crucial for students needing a practical understanding of chemical calculations and laboratory skills. It’s designed for students enrolled in CHEM 120 who need to apply theoretical knowledge to real-world scenarios. Understanding stoichiometry and solution preparation is foundational for success in further chemistry coursework and related scientific fields. This document serves as a guide *before* and *during* the Labster simulation, ensuring students are prepared for the virtual lab experience.
Common Limitations or Challenges
This document is a laboratory guide; it does not replace lectures or textbook readings. It provides the framework for the lab but doesn’t independently teach the underlying chemical principles. Students will still need to understand concepts like Avogadro’s number, molar mass, and balancing chemical equations from other course materials to successfully complete the lab. This preview does not include the answers to the post-lab questions.
What This Document Provides
The full document includes:
* Clearly stated learning objectives related to stoichiometric calculations, Avogadro’s number, and solution preparation.
* A description of the Labster simulations: “Stoichiometric calculations: Identify an unknown compound using gravimetric analysis” and “Stoichiometry: Avogadro’s number and molecular calculations”.
* Guidance on appropriate glassware selection for solution preparation.
* A structured assignment including a section for recording observations from the simulation.
* Post-lab questions designed to assess understanding of key concepts, including mole conversions and mole ratios.
* A purpose statement to be completed by the student.
This preview does *not* include the complete Labster simulation, the answers to the post-lab questions, or detailed step-by-step instructions for completing the simulation.
