Community College of Baltimore County (CCBC) at Catonsville, Maryland

This is the Homepage of Dr. Crystal Lin Yau, Associate Professor in Chemistry at CCBC, Catonsville.

For useful chemistry tutorials, scroll further down the screen. Some are appropriate for general chemistry, some for organic chemistry. If you have questions concerning this website you may contact me by email: cyau@ccbcmd.edu

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I am teaching the following classes in Spring 2012:

I do not use BlackBoard/WebCT. This is where you will access all my files and see your assignments

Chem 108 Sec CD1 Wed at 10:10 AM - 1:05 PM in D-106 (no prelab room)

Chem 121 Sec CLA Tue & Thu at 9:35 AM – 11:25 AM in D-200

Chem 122 Sec CO1 Tue at 2:40 PM – 5:35 PM first in E-106, then in D-106

Chem 123 Sec CN1 Tue & Thu at 12:45 PM – 2:35 PM in D-109

Chem 124 Sec CO1 Thu at 2:40 PM – 5:35 PM first in D-100, then in D-106

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SPECIAL NOTE TO CHEM 123 (Gen Chem II) STUDENTS:

My website has a fairly long list of tutorials for Gen Chem I that even Gen Chem II students are

likely to find useful as review. I am now in the process of putting up some tutorials for Gen Chem II.

Please contact me if you have a special request on which topics you are coming across

that you feel a tutorial would be beneficial.

mailto:cyau@ccbcmd.edu

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CHEM 107 INFORMATION:

CHEM 107 ONLINE OWL HOMEWORK

· You need to register online for the OWL homework using the access code that came with your textbook.

· The access code is included IF you purchased a new text from the CCBC bookstore.

· If you purchased a used text, you will have to purchase the access code online.

· Click here to purchase the access code but be sure you select the link for the 4th edition of the textbook

http://tinyurl.com/OwlAccessPurchase (access code only: $46.99 for 6 months; access code + e-book: $69.49)

· You have the option of purchasing an e-book and not having a hard copy of the textbook, but this works only for people who don’t mind using an e-book.

· If you have an access code, click here to register: http://tinyurl.com/OWLregistration

Quick Guide to the Use of Casio fx260 (non-programmable scientific calculator)

Periodic Table

Black Screen

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Useful Chemistry Tutorials & Worksheets with Answers for Intro Chem, Gen Chem & Organic Chem:

Need Acrobat Reader (free) software that allows you to view some of the tutorials? Download from here: http://www.adobe.com/products/acrobat/readstep2.html

· Math Review for General Chemistry I (Requires Adobe Acrobat Reader)

· Test Yourself On Your Scientific Calculator Skills (Requires Adobe Acrobat Reader)

· Quick Guide to the Use of Casio fx260 (non-programmable scientific calculator)

· Tutorial on the Use of the Scientific Calculator (Requires Adobe Acrobat Reader)

· Tutorial on Significant Figures

· Practice Problems on Handling Significant Figures During Calculations

· Tutorial on Solving Problems with Dimensional Analysis (Factor Label Method) (Requires Adobe Acrobat Reader)

· Practice Problems on Unit Conversion (Requires Adobe Acrobat Reader)

· Practice Problems Dealing with Density

· Printable Periodic Table (Requires Adobe Acrobat Reader)

· How to Customize The Computer Keyboard to Fit the Chemist (Requires Adobe Acrobat Reader)

· Distinguishing Amongst the terms: Atoms, Molecules, Elements, Compounds (Requires Adobe Acrobat Reader)

· Practice Problems on Working with Grams, Moles, Avogadro's number, Stoichiometry (Requires Adobe Acrobat Reader)

· Answers to Practice Problems on Working with g, mol, Avogadro's number, Stoichiometry

· Solubility Rules you should know well

· Practice Questions Involving Solubility Rules of Ionic Compounds

· How to Write Ionic Equations

· Tutorial on Solving Molarity & Dilution Problems

· Practice Problems on Thermochemistry (Requires Adobe Acrobat Reader)

· Answers to Practice Problems on Thermochemistry (Requires Adobe Acrobat Reader)

Tutorials on Nomenclature (systematic naming of chemicals):.

For General Chemistry (Chem 121/122/123/124)

· Nomenclature of Inorganic Compounds:  A Tutorial with Drills (Chem 121/122/123/124)

· Nomenclature: Answers to the Drills (Chem 121/122/123/124)

· Nomenclature of Straight-Chain Alkanes (Requires Adobe Acrobat Reader) (Chem 121/122/1232/124)

For Introductory Chemistry (Chem 107/108)

· Tutorials on Nomenclature for Preparatory/Introductory Chem for Web use (Chem 107/108)

· Tutorials on Nomenclature for Preparatory/Introductory Chem (for printer friendly, 33 pages) (Chem 107/108)

· Tutorial on Nomenclature of Special Cations for Preparatory/Introductory Chem (Chem 107/108)

Practice Exams for Introductory Chemistry (Chem 107)

The same material is covered in all sections of Chem 107. However, exams are not always given on the same week.
Therefore, some of what is in your Exam II may be found in Exam III. Ask your instructor which questions pertain to your section.

Chem 107 Practice Exam I

Chem 107 Practice Exam II

Chem 107 Practice Exam III
Chem 107 Practice Exam IV

There is no practice exam for the Finals, but format will be similar to the above.

Tutorials on Molecular Bonding:..

· How to Write Lewis Structures (Requires Adobe Acrobat Reader)

· How to Determine Formal Charges (Requires Adobe Acrobat Reader)

· What is meant by the “EXPANDED OCTET”? (Requires Adobe Acrobat Reader)

· Determination of Molecular Geometry & Hybridization Based on VSEPR (Requires Adobe Acrobat Reader)

· Tutorial on Resonance Hybrids

Tutorial on Mathematics Used in Gen Chem II:.

· How to Calculate Standard Deviation

· Tutorial on Logarithm for Gen Chem II students

· How to Use Excel 2003

Tutorials for Gen Chem II:

· Essential Review of Gen Chem I Material – Part I

(in order to understand Intermolecular Forces in Gen Chem II, also good review for Organic Chemistry students)

· Essential Review of Gen Chem I Material – Part II

· Brief Intro to Lewis Structures of Organic Molecules

· Practice Questions on Understanding Line Drawings of Organic Molecules (pdf) with answers

· Intermolecular Forces of a Few Classes of Organic Molecules

Tutorials for Organic Chemistry:..

· Index of Hydrogen Deficiency (Adobe Acrobat Reader required)

· Lecture on Oil Refineries (& on BTX) (Adobe Acrobat Reader required)

· Brief Review of IR Analysis (from Chem 203 - 5^th Edition, January 2008 - Appendix 3) -Adobe Acrobat Reader required

· Major IR Absorptions (from Chem 203 - 5^th Edition, January 2008 - Appendix 4-Part I) -Adobe Acrobat Reader required

· Overall View of IR Absorptions (from Chem 203 - 5^th Edition, January 2008 - Appendix 4-Part II) -Adobe Acrobat Reader required

· Brief Review of ¹H- NMR Analysis (from Chem 201- 6^th Edition, August 2007 - Experiment #11) -Adobe Acrobat Reader required

· Major ¹H-NMR Shifts (from Chem 203 - 5^th Edition – January 2008 - Appendix 5) -Adobe Acrobat Reader required

· For Organic Chem students: Link to a VERY good website for practice in analyzing NMR spectra

· For Organic Chem students: Link to ANOTHER VERY good website for practice in analyzing NMR spectra

· Extra practice on R and S assignment (UCLA website for use in Chap. 3)

· Extra practice on pKa, position of organic acid-base equilibria (UCLA website for use in Chap.4)

Click here to see which topics in the ACS GENERAL CHEMISTRY Study Guide pertain to Chem 121 students
(Updated April 13, 2009)

Click here to see which topics in the ACS ORGANIC CHEMISTRY Study Guide pertain to Chem 200 students
(Updated May 2009)

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Useful Chemistry Links

· For Organic Chem students: Link to SDBS (Spectra Data Base System)
You are requested not to download more than 50 spectra and/or compound structure files in one day

· For Organic Chem students: Overview of IR Spectroscopy with table of absorptions

· For Organic Chem students: Link to textbook website for useful animation, tutorials & quizzes. (Requires Access Code.)

· Click here to go to the Towson Chemistry Tutor Center Homepage (Lots of helpful tutorials here for both General Chemistry and Organic Chemistry!)

· Click here to Explore Interesting Facts About Elements

· Feeling “down” and need to be perked up? Click here.

· Click here to see pictures of elements in their natural states.

· Click here to check the weather in Baltimore.

· Click here to explore the EPA website

Advisement Areas

· Disciplines that Require Chemistry Courses

· Pre-Pharmacy (General Info)

· UM School of Pharmacy Open House (none scheduled at this point in time, will update)

· UM School of Pharmacy Website

· UM PharmD Program

· PCAT

· PCAT Study Guide Zone

· PCAT Study Tips

· Pharmacy Technician (new certification program at CCBC)
Do not confuse this with Pharmacy School.

· Pharmacy Technician Jobsite
(not sponsored by CCBC, not endorsed by CCBC, here only for your info.)

· Pre-Dental (Link to U of Maryland, Baltimore, Dental School)
UMB admission requirement for DDS (Doctor of Dental Surgery Program)
UMB admission requirement for Dental Hygiene Programs

· Bridge Program (to Morgan State U for CCBC Students, possibility of paid summer research)

Temporary 146 Chap 7