Objective Today I will be able to: Apply naming rules to alkanes, alkenes and alkynes Evaluation/ Assessment Informal assessment – Listening to group interactions as they complete the Organic Chemistry Practice Formal Assessment – Analyzing student responses to the exit ticket and organic chemistry practice. Common Core Connection Build Strong Content Knowledge Make sense of problem and persevere in solving them Reason abstractly and quantitatively Look for and express regularity in repeated reasoning

Lesson Sequence  Warm – Up  Course Registration Information  Explain: Organic Chemistry Naming Notes  Elaborate: Organic Chemistry Naming Practice  Evaluate: Exit Ticket Formal assessment

Warm-Up  Find your new seat!  What is an organic compound?  What are some examples of organic compounds?

Warm - Up  Name the following organic compounds C C C C CC CC C CCCCCCCCC CC CC CCCC C C C

Objective  Today I will be able to: Apply naming rules to alkanes, alkenes and alkynes

Homework  STEM Fair – Thursday, January 29  Organic Chemistry Quiz – Friday, January 30

Agenda  Warm – Up  Course Registration  Organic Chemistry Notes  Organic Chemistry Naming Practice  Mid-term Exam Review  Exit Ticket

Physics  Traditional Sequence the next course is Physics  Placement is based on current math grade and future math placement  AP Physics C (AP Calc next year)  AP Physics 1 = GT Physics (Pre-Calc GT)  Physics

Electives AP COURSES  AP Chemistry  AP Biology  AP Environmental Science ELECTIVES  Marine Science  Anatomy and Physiology  Forensic Science

Organic Compounds  Contain carbon and hydrogen  If they do not contain both carbon and hydrogen, they are classified as inorganic

Hydrocarbons  Simplest organic compounds  Bonds involving Carbon and Hydrogen  Saturated Hydrocarbon – all single bonds  Unsaturated Hydrocarbon – multiple bonds (single, double triple)

Alkanes  Saturated hydrocarbons  Formula: C n H 2n+2  Condensed Structural vs. Expanded Structural Formulas

Prefixes for organic groups

Rules for Naming Hydrocarbons 1. Find the longest continuous chain of carbon atoms. Use the proper prefix to name the chain.  If it is an alkane add the ending –ane  If it is an alkene add the ending –ene  If it is an alkyne add the ending -yne 2. Number the carbon atoms in the chain so that the lowest possible numbers will be given for the attached hydrocarbon groups 3. Name the groups attached to the chain by adding a suffix –yl to the stem name. Locate them by identifying the number assigned to the carbon it is located on 4. If there is more than one group arrange them in alphabetical order

Alkenes  Unsaturated compounds with at least one double bond  C n H 2n  Use the suffix –ene in naming  Position of the double bond is indicated using the lower number of the two carbon atoms that the double bond joins

Alkynes  Unsaturated compound with at least 1 triple bond  C n H 2n-2  Use the suffix –yne in naming  Number the triple bond using the lowest number carbon

Halogen Substitution  A hydrogen can be replaced with  Chloro -Cl  Bromo-Br  Iodo-I  Name using the lowest number carbon

Exit Ticket  What is the structure of:  5-butyl-3,7-diethyl-2,8-dimethyl-4,6-dipropyl-1,8-nonadiene

Answer C C C C C C C C CCC C CCCCCCCCC CCCCCCC CCCCCC C C