E9.docx - Experiment 9 Weak Acids and Buffers GRADING...

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Experiment 9 Weak Acids and Buffers GRADING RUBRIC Student name: ____________________________________ TA name: __________________________________________ Day & time of the lab: ___________________________ The overall lab report grade for this experiment will consist of the following: 1. (9 pts) PRE-lab notebook pages 1.1. Part of the Lab Pages, Demonstration, and Post-Lab Quiz (don’t need to include them in your report upload). 2. (16 pts) IN-lab notebook pages & POST-lab quiz 2.1. Part of the Lab Pages, Demonstration, and Post-Lab Quiz (don’t need to include them in your report upload). 2.2. Experimental procedure 2.3. Observations if any were noted. 2.4. Post-Lab Assessment 3. (75 pts) The WORKSHEET 3.1. Tables with captions 3.2. Figures of graphs with captions in the right positions 3.3. Detailed calculations (may NOT be hand-written in the POST lab notebook pages; must be typed clearly into the worksheet with all relevant steps and units shown. 3.4. Complete (full sentence) answers to the discussion questions (DQ; may be listed by DQ#s ) Complete the Pre-Lab Pages, Virtual In-Lab Demonstration, “In-Lab” Pages and the Post-Lab assessment in the Quiz section on Canvas (Titled Lab Pages, Demonstration, and Post-Lab Quiz) and then complete this worksheet and Submit the worksheet document online to Canvas. Feel free to adjust space in this document as needed. NOTE about the FILE SIZE for electronic submissions: If your final document is too large and upon upload to Canvas you get the message that “your file is too big to upload” you can resolve that, for example, by: reducing the resolution of your graphics, saving the document as a text (.docx) file instead of a .pdf file, etc. 1 A. M. Bohnsack Spring 2020 (revised Z. B, P. S)
Worksheet & Grading Rubric – Weak Acids and Buffers PRE-LAB pages – 9 pts – point breakdown 1. (2 pts) Purpose & Objectives 2. (1 pts) List of compounds (reactants, reagents, solvents, etc. ( with the correct concentrations ) 3. (1 pts) List of equipment 4. (1 pts) Chemical and physical hazards 5. (2 pts) Properly balanced chemical equations (2 sets) 6. (2 pts) Experimental OUTLINE IN-LAB pages & Post-Lab Quiz – 16 pts – point breakdown 1. (4 pts) In-Lab procedure and observations/notes 2. (12 pts) Post-Lab Quiz WORKSHEET: RESULTS & DISCUSSION QUESTIONS – 75 pts Figure 1: This is trial 1 of the titration curve of Acetic Acid vs NaOH 2 A. M. Bohnsack Spring 2019 (revised Z. Baranová)
Worksheet & Grading Rubric – Weak Acids and Buffers Figure 2: This trial 1 of second derivative curve of Acetic Acid vs NaOH Figure 3: This is trial 2 of Acetic Acid vs NaOH titration curve 3 A. M. Bohnsack Spring 2019 (revised Z. Baranová)

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