What This Document Is
This document is a study guide designed to help students prepare for the first exam in Emory University’s CHEM 150: Structure and Properties course. It outlines the key concepts and skills that will be assessed on the exam, covering foundational topics in chemistry.
Why This Document Matters
This study guide is essential for students enrolled in CHEM 150 who want to focus their studying and understand the scope of the first exam. It’s most useful when used *in conjunction with* course lectures, assigned readings, and homework assignments. The guide exists to clarify expectations and provide a roadmap for effective exam preparation.
Common Limitations or Challenges
This study guide is a *preview* of the material covered on the exam. It does not contain detailed explanations, worked examples, or practice problems with solutions. It will not replace the need to attend lectures, complete assignments, or engage with the course materials. It is a guide to *what* will be tested, not *how* to succeed.
What This Document Provides
This study guide outlines three main areas of focus for Exam 1:
* **Units, Scale, and the Mole:** This section covers understanding the magnitude of atoms, unit conversions (including prefixes like tera, giga, nano, and femto), and the concept of the mole and Avogadro’s number.
* **Mass Spectrometry & Scientific Explanations:** This section focuses on the difference between atomic mass and mass number, interpreting mass spectra, calculating isotope abundance, and constructing scientific explanations using a Claim, Evidence, and Reasoning framework.
* **Waves & Particles:** This section introduces the wave-like properties of energy, constructive and destructive interference, the electromagnetic spectrum, and Planck’s equation relating energy to frequency.
The guide lists specific learning objectives within each area, but does *not* provide detailed explanations or solutions. It also does not include any practice exam questions.
