# Introduction to Analytical Chemistry (CHM 3120)

**Recent updates and info**

Our final exam is Tuesday, December 10, from 5:30p to 7:30p in 255 FLH (our usual lecture hall).

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*No new materials will be added to the course website after 2:00p on Monday, December 9. If any changes are made to solutions after that, a notice will also be emailed to the class. Anything after 6:00 pm on Monday, December 9, will be sent by email.*

As I mentioned in class, the original Unit III Homework set is no longer valid *because the only new material for the final exam will be spectroscopy, specifically using Beer’s law to determine concentration and maybe answer a question or work a problem using that concentration.* In addition to a couple of problems from the old exams, valid homework problems can be found at the end of the Spectrophotometry chapter in Harris, or by clicking here: Beer’s law problems from Harris

Solutions for the end-of-chapter (EoC) problems in Harris are posted below in the section * Solutions to EoC Problems from Harris*. The bulk of the final will cover material that was fair game for the first two exams, including balancing redox reactions in water under acidic or basic conditions.

**Course Materials**

►pH-Potential (Pourbaix) Diagrams – Chemistry LibreTexts

►pH-Potential (Pourbaix) Diagrams, Supplemental Materials

►Lecture Slides up to Exam Two (Unit II)

►Electron accounting systems: Oxidation Number and Formal Charge

►Two methods for balancing redox reactions

►Acid-base chemistry of drugs

►Derivation of Cubic Equation for Ka Problems

►Lecture Slides up to September 30, Exam One (Unit I)

►Common Units Used in Health-Allied Professions

►CHM 3120 syllabus, Fall 2019

►CHM 3120 Information Handout for Exam 1, Spring 2019

**Useful Links**

►Graphical Explanation of t-Tests

►Omni Chemistry Calculators

►Titration Curve Generator

**Random Assignments**

►Random Assignment #5: Submit a list of topics that your group thinks are “fair game” for Exam 2. One person should send me the list for each group by Sunday evening, copying the other students in that group. At least 3 and no more than 6 students per group. I will post my list of topics Sunday evening.

►**Solutions to RA #2-4: Titration of a w. base with a s. acid**

►Random Assignment 2-4

►Random Assignment 1

**Solutions to EoC Problems from Harris**

**Fundamentals of Spectrophotometry, Chapter 18**

►*Chapter 18 Solutions to EoC Problems, Harris 7e*

**Fundamentals of Electrochemistry, Chapter 13**

►*Chapter 13 Solutions to EoC Problems, Harris 8e*

**Acid/Base Chemistry and Titrations, Chapters 8, 9, and 10**

►*Chapter 10 Solutions to EoC Problems, Harris 8e*

►*Chapter 9 Solutions to EoC Problems, Harris 8e*

►*Chapter 8 Solutions to EoC Problems, Harris 8e*

**Experimental Error and Statistics, Chapters 3 and 4**

►**Chapter 4 Solutions to EoC Problems, Harris 7e**

►**Ch*** apte*r 3

**Solutions to EoC Problems, Harris 7e****Homework Assignments and Additional Practice Problems (APP)**

►Exam 4, Problem III, CHM 3120, Fall 2012

►**Solutions to Problem III from Exam 4, CHM 3120, Fall 2012**

►Exam 3, Fall 2012

►**Solutions to Exam 3, Fall 2012**

►Exam 3, Spring 2011

►Solutions to Exam 3, Spring 2011Exam 3, Summer 2010

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*Exam 3, Summer 2009*

►Solutions to Exam 3, Summer 2010

►►Solutions to Exam 3, Summer 2010

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►Solutions to Exam 3, Summer 2009►Solutions to Exam 3, Summer 2009

►Exam 2, Fall 2012

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**Solutions to Exam 2, Fall 2012**►Exam 2, Spring 2011

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**Solutions to Exam 2, Spring 2011**►Exam 2, Summer 2011

►Exam 2, Summer 2010

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**Solutions to Exam 2, Summer 2010**►Exam 2, Summer 2009

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**Solutions to Exam 2, Summer 2009**►Unit II Additional Homework Problems, revised: Part 1, more acid-base, Part 2

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**Unit II Echem solutions, Problem 1 & 2**►

**Unit II Solutions**►

**Solutions to More Acid-Base Solutions**►Exam 1, CHM 3120, Spring 2019

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*Solutions to**Exam 1, CHM 3120, Spring 2019*►Exam 1, CHM 3120, Fall 2012

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*Solutions to**Exam 1, CHM 3120, Fall 2012*►Unit I Additional Homework Problems (from previous 3120 exams)

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*Solutions to Exam One, CHM 3120, Spring 2011*►

*Solutions to Exam One, CHM 3120, Summer 2011*►

*Solutions to Exam One, CHM 3120, Fall 2012*►

**Solutions to Additional buffer and acid pH problems for Exam One**►Additional buffer and acid pH problems for Exam One

►Balancing Redox Reactions: The Ron Clark Collection

**Old Exams**

►**Solutions to Exam 2, CHM 3120, Fall 2019**

►**Solutions to Exam 1, CHM 3120, Fall 2019**