Chem 108 Lab Week 9 Sign in Pick

Chem 108: Lab Week 9 Sign in Pick up papers Sit at your lab station i. e. where your lab drawer is located

Molecular Modeling (Individual or Collaborative) Report Form (Replacement pages for Molecular Model Lab pp. 97 -103) http: //chemconnections. org/general/chem 108/Chemistry%20108%20 Molecular%20 Modeling%20 Fo rm%20 Fall%202017. pdf Computers & Internet available in PS 110, if needed http: //molview. org Turn-in individually or one per group Due Weds. 21 -Mar

http: //molview. org Molecular Shapes Lewis Structures Mol. View: Visual On-line Molecular Modeling Bonding, Lewis Structures, Molecular Modeling: Computational Experiments, Instructions, & Manual pp. 53 -58

Combustion 1 CH 4(g)+ 2 O 2(g) 1 CO 2(g)+ 2 H 2 O(g) + energy

Octane (Gas) Combustion Engine 2 C 8 H 18(l)+ 25 O 2(g) 16 CO 2(g)+18 H 2 O(l) + energy http: //chemconnections. org/general/movies/4 Stroke. Engine_Ortho_3 D_Small. gif

Infrared- Bond Absorbances

Infrared - Bond Absorbances http: //molview. org Sun lamps = Infrared Energy

Infrared- Bond Absorbances https: //www. co 2. earth/ Has this number changed in the past 6 months? The energy in the earth’s atmosphere?

Infrared Spectra: CO 2 Concentration Effects Nitrogen & Oxygen produce flat lines: 100% Transmission, 0 Absorbance

Chemical Reactions TODAY’s Experiment Combination (Synthesis) Decomposition Single Displacement Double Displacement _____________ Combustion: Oxidation-Reduction Biological Reactions: Enzyme Catalysts Fermentation http: //www. piney. com/Bab. Ninkasi. html)

To DO Today: Lab Manual pp. 44 -45 Chemical Reactions Select a partner; ; each partner is to keep individual records & reports pp. 47 -52 Combination (Synthesis) Decomposition Single Displacement Double Displacement _____________ Combustion: Oxidation-Reduction Biological Reactions: Enzyme Catalysts Example: Fermentation pp. 61 -67 http: //www. piney. com/Bab. Ninkasi. html) Have Dr. R. initial Lab Manual pp. 44 -45 before leaving