Organic Chemistry first lecture

Course Overview

  • Weekly engagement to assess understanding.

Class Structure

  • Weekly classes to ensure comprehension.

  • There will be a total of three exams.

  • Access information provided through Brightspace and linked resources.

Accessing Course Materials

  • Book access has been provided since the semester start.

  • Homework and resources are organized by exam in Brightspace.

    • Homework associated with Exam 1 will be available in a dedicated folder.

Grading Scheme

  • Primary grading components:

    • Three main exams.

    • Homework contributes 15% to the final grade.

    • Homework will be adaptive, with due dates before exams.

  • Students can complete homework throughout the semester for credit if not finished by initial due dates.

Important Dates

  • First homework set due: February 25.

  • First exam: February 26.

  • Final opportunity to submit homework: April 29.

Skill Checks (Quizzes)

  • Quizzes will occur weekly, with exceptions during exam weeks to prevent overlap.

Makeup Exam Policy

  • Missing an exam results in a zero, which will be replaced by the average of the other two exam scores at semester's end.

  • Makeup exams are not offered except for military obligations or specific federal exemptions.

  • Options available for students who cannot make a scheduled exam; alternative timings on exam days available.

Exam Schedule

  • Exam dates:

    • Exam 1: February 26

    • Exam 2: March 26

    • Exam 3: April 28

  • Cumulative final exam on May 5 (students with an 'A' are exempt).

Final Exam Details

  • Students will receive an email regarding exemption if they maintain an 'A'.

  • Students can choose between using their final exam score or not taking the final at all.

  • Two final exam sessions scheduled:

    • 11:00 AM - 1:30 PM

    • 3:30 PM - 5:00 PM

Extra Credit

  • Extra credit is provided through exam wrappers after Exams 1, 2, and 3, focused on reflections on study habits and exam preparation.

  • Students earn 10% of missed points for each exam through this process, added directly to the corresponding exam score.

  • General rule: no individual extra credit assignments will be assigned to maintain fairness.

Overview of Course Content

  • Introduction to organic chemistry as a key focus, establishing a foundation for biological processes.

Importance of Organic Chemistry

  • Organic chemistry is fundamentally the study of carbon-based materials, applicable in biological systems.

  • Discussions include:

    • The Krebs cycle as an energy process.

    • Cellular reactions related to UV light and free radicals.

Key Concepts in Chemistry

  1. Basic Definitions

    • pH: Measure of acidity or basicity in solutions.

    • Acids and Bases: Role in biological functions and drug formulations.

  2. Bonding Types

    • Covalent Bonds: Electrons shared between atoms; typically within similar electronegativities.

    • Ionic Bonds: Formation through transfer of electrons between metals and nonmetals, resulting in cations and anions.

    • Polar Covalent Bonds: Unequal sharing of electrons between atoms with differing electronegativities.

  3. Lewis Structures

    • Visual representations of electron arrangements in compounds.

    • Rules for determining central atoms and assigning valence electrons.

    • Adjustments for achieving complete octets, considering exceptions (Hydrogen, Boron, Aluminum).

Detailed Concepts

  • Electronegativity: How strongly an atom attracts bonding electrons; important in determining bond types.

  • Exceptions to Octet Rule:

    • Hydrogen only seeks 2 electrons (duet rule).

    • Boron and Aluminum prefer 6 valence electrons.

  • Reactivity Principles:

    • Core electrons are more tightly bound; valence electrons play a critical role in chemical bonding.

    • Importance of understanding electronegativity differences in predicting bond types.

Homework Assignments

  • Homework must be submitted before due dates but can be reopened for completion until the semester's end.

Exam Preparation Strategy

  • Review and understand prior concepts, especially bonding, polarity, and significant reactions.

  • Practice by answering previous exam questions and participating in study group discussions.

Questions and Clarifications

  • Students are encouraged to inquire about the structure and expectations of exams, homework, and class policies.

Overall, the course aims to bridge understanding of chemical principles with real-world biological applications, enhancing student performance and comprehension in organic chemistry.