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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 only one class in Fall 2014:  CHEM 123 Gen Chem II (Lecture)

Do NOT attempt to contact me through BlackBoard. Use e-mail: cyau@ccbcmd.edu

The link below is where you will access all my files and see your assignments.

 

         Chem 123 Sec CH1 Mon & Wed at 2:30 PM – 4:20 PM in CLRM 207 (CRN 90579)

 

 

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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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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)

 

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 - 5th Edition, January 2008 - Appendix 3) -Adobe Acrobat Reader required

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

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

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

·         Major 1H-NMR Shifts (from Chem 203 - 5th 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.

·         Now hear Daniel Radcliffe sing it! Click here

·         Want to know what happens to molecules as temperature nears absolute zero? 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  September 29, 2012 Click here to register

·         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

Pharmacy Technician Tips

   (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)

 

 

Do you need a review on Chemical Nomenclature?   

 

Flowchart for Writing Names from Formulas

 

PowerPoint for Nomenclature

 

 

 

 

 

 

 

 

 

 

 

 

rc1  rc6

rc2  rc7

rc3  rc8

rc4  rc9

rc5  rc10