Chemistry 221

CH 221 Announcements

October 25, 2024

Items Due During Week 6:

Section 01: Due in Recitation on Monday, October 28
• The Rough Draft Class Presentation Paper on your reserved element... more info here.
• The "Percent Potassium Chlorate (in class)" lab
• Problem Set #4
• We will take Quiz #4 after we discuss the problem set
• Bring a printed copy of the "Net Ionic Reactions (in class)" lab to recitation.

Section H1: Due in Recitation on Wednesday, October 30
• The Rough Draft Class Presentation Paper on your reserved element... more info here.
• The "Percent Potassium Chlorate (in class)" lab
• Problem Set #4
• We will take Quiz #4 after we discuss the problem set
• Bring a printed copy of the "Net Ionic Reactions (in class)" lab to recitation.

Section W1:
• The Rough Draft Class Presentation Paper is due via email by 11:59 PM on Wednesday, October 30 on your reserved element... more info here. Make sure you submit a single file for this assignment (with both the cover sheet and your rough draft paper) to avoid a point penalty.
• Problem Set #4 is due via email by 11:59 PM on Wednesday, October 30.
• The "Percent Potassium Chlorate (online)" lab is due via email by 11:59 PM on Wednesday, October 30
• Quiz #4 is due via email by 9 AM on Friday, November 1. The link to the quiz will be released Wednesday, October 30 by 8 PM via email - check your email Wednesday evening!
• Start working on the "Net Ionic Reactions (online)" lab (due next week Wednesday, November 6)

ALL SECTIONS:
• Start studying the material in Chapter 3 and Chapter 4.
• My Wednesday, October 30 office hours will be from 10 AM - noon (no noon - 1 PM office hour on Wednesday.) I have a meeting at noon on October 30 that I must attend; sorry for the confusion.

---

This week we will begin studying the power of the balanced chemical reaction. We shall explore how it can help us determine the outcome of a reaction through calculation of the theoretical yield, limiting reactant, excess reactant, and other entities. We shall also begin exploring the properties of solutions (primarily water based or aqueous) and explore the net ionic reaction (the "action of the reaction".) If you have any questions, Contact me.

Here's what is happening in week 6 of CH 221:

• Explore the material in Chapter 4. There are several tools to help you learn the material.... they include:
  • Read Chapter 4 in the textbook
  • Watch the Complete Lectures for Chapter Four Part I here: Part I, Part II. You might benefit from watching the videos for Chapter Four Part II as well, found here: Part I, Part II
  • Lecture videos for Chapter 4 Part I will be found on YouTube and as a Podcast.
  • Chapter Guide Four (online learning materials for Chapter 4 Part I) might be helpful
  • "Mini video lectures" ("Screencasts") can be found in the Videos page for CH 221 under Chapter 4 Part I (and maybe Chapter 4 Part II as well.)
  • The Concept Guide for Chapter 4 Part I, the Concept Guide for Chapter 4 Part II and other Chapter 4 Part I and II handouts might prove useful.
• Due: Problem Set #4 which covers problems from Chapter 4.
  • Use this link to get the Fall 2024 version of problem set #4.
  • Section 01 and Section H1 will bring the problem set to recitation, and Section W1 will email the self-corrected problem set to the instructor after watching the recitation video.
  • Practice Problem Set #4 might be of help while completing problem set #4; answers are included at the end of the document.
• This Week: Quiz #4
  • Section 01 and Section H1 will take the quiz in class during recitation in AC 2501.
  • Section W1 will receive a link to the quiz via email Wednesday evening. The quiz should be emailed to the instructor.
  • Sample Quiz #4 (answers) might be helpful.
• Due: The "Percent Potassium Chlorate" Lab.
  • Section 01 and Section H1: The "Percent Potassium Chlorate (in class)" Lab is due in recitation.
  • Section W1: The "Percent Potassium Chlorate (online)" Lab is due via email.
• Start: The Net Ionic Reactions Lab.
  • Section 01 and Section H1: Net Ionic Reactions (in class) Lab (bring a printed copy to lab.)
  • Section W1: Net Ionic Reactions (online) Lab.
• Due: The Rough Draft of your Class Presentation Paper.
  • A "rough draft" for this assignment means at least two typed pages with at least one science peer reviewed abstract and citation; see the FAQ for more information. Also make sure you include the completed Rough Draft cover page.
  • Section 01 and Section H1: The Rough Draft of your Class Presentation Paper is due in recitation.
  • Section W1: The The Rough Draft of your Class Presentation Paper is due via email on Wednesday, November 1 by 11:59 PM.
  • More information on the Rough Draft Class Presentation paper can be found by using this link.

---

Here's a preview of what's going to be happening during Week #7:

• Special Note: Monday, November 11 is Veterans Day, and Mt. Hood Community College will be closed. Section 01 will not have a 9 AM lecture on November 11 or a 1:10 - 5 PM lab. More information coming soon!

• Explore the material in Chapter 4 and Chapter 5. There are several tools to help you learn the material.... they include:
  • Read Chapter 3, Chapter 4 and Chapter 5 in the textbook
  • Watch the Complete Lectures for Chapter Four Part II (found here: Part I, Part II) and for Chapter Five (found here: Part I, Part II)
  • Lecture videos for Chapter 4 Part II and Chapter 5 will be found on YouTube and as a Podcast
  • Chapter Guide Five (online learning materials for Chapter 4 Part II and Chapter 5) might be helpful
  • "Mini video lectures" ("Screencasts") can be found in the Videos page for CH 221 under Chapter 4 Part II and Chapter 5
  • The Concept Guide for Chapter 4 Part II, the Concept Guide for Chapter 5 and other relevant handouts could prove useful.
• Due: Problem Set #5 which covers problems from Chapter 4 and Chapter 5.
  • This is a longer problem set, so do not wait until the last minute to start it.
  • Use this link to get the Fall 2024 version of problem set #5.
  • Section 01 and Section H1 will bring the problem set to recitation, and Section W1 will email the self-corrected problem set to the instructor after watching the recitation video.
  • Practice Problem Set #5 might be of help while completing problem set #5; answers are included at the end of the document.
• This Week: Quiz #5
  • Section 01 and Section H1 will take the quiz in class during recitation in AC 2501.
  • Section W1 will receive a link to the quiz via email Wednesday evening, and completed quiz should be emailed to the instructor by 9 AM Friday.
  • Sample Quiz #5 (answers) might be helpful.
• Due: The "Net Ionic Reactions" Lab.
  • All Sections: This can be a longer lab, so do not wait until the last minute to start it.
  • Section 01 and Section H1: The "Net Ionic Reactions (in class)" Lab is due in recitation.
  • Section W1: The "Net Ionic Reactions (in class)" Lab is due via email.
• Start: The Unknown Chloride Lab.
  • Section 01 and Section H1: The Unknown Chloride (in class) Lab (bring a printed copy to lab.) Bring your safety glasses!
  • Section W1: Complete the Unknown Chloride (online) lab.

Back to the top

Video of the Week

Back to the top

Podcast Corner

Back to the top