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Chemical Equilibrium Establishment in Scientific Experiments

Learn and practice the principles of dynamic equilibrium through experimental procedures, data analysis, and error identification for enhanced scientific understanding and application.

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Chemical Equilibrium Establishment in Scientific Experiments

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  1. Lab #20 Write-Up (Due 5-10-13) • Rubric • Your Report • Header (Establishing Equilibrium) • Objective • Procedure & Materials: Refer to Handout • Data: Graph attached • Discussion: • Observations # 1-4 (in report); Analysis #1-5 (on worksheet) • Errors/Improvements • Conclusion • Claim – given on handout; Evidence (refer to graph; rate as slope) • Science Concept (dynamic equilibrium; rate; concentration; etc.) • Lab Worksheet

  2. Lab #18 Write-Up (Due 4-22-13) • Rubric • Your Report • Header (Titration of NaOH) • Objective • Procedure & Materials: Refer to Handout • Data: Refer to Tables in Handout • Calculations: Show equation (on WS), substitution w/units, answer w/units for all titration calculations. Label average value as final answer. • Discussion: • Questions (Neatly answer on back of handout.) • Errors/Improvements (Write in report.) • Conclusion • Claim – given on handout;Evidence -refer to data and calculations. • Science Concept – include questions listed in the handout. • Lab Handout & Data Sheet

  3. Lab #18 Activity (Due 4-15-13) • Rubric • Lab Worksheet • Electrolytes • Complete Dissociation Equations • Answer Questions (check)

  4. Lab #17 Activity (Due 3-22-13) • Rubric • Lab Worksheet • Solubility of a Salt • Graph • Answer Questions

  5. Lab #16 Write-Up (Due 3-19-13) • Rubric • Your Report • Header (Double Replacement Reactions) • Objective • Procedure & Materials: Refer to Handout • Data: Refer to Handout for 1.) Observation Table, 2.) Table of FormulaEquations predicting products, and 3.) Four handwritten Ionic Equations (full and net; identify spectator ions by crossing out) • Discussion: • Errors/Improvements • Conclusion (Paragraph form) • Claim – given on handout; Evidence (observations to formula products to ionic equations; evidences) Science Concept (solubility -Table F, precipitate, ionic compounds and aqueous; double replacement rxn.) • Lab Worksheet

  6. Lab #15 Activity (Due 3-6-13) • Rubric • Lab Worksheet • Conservation During a Chemical Reaction • Answer Questions

  7. Lab#14 Write-Up (Due 3-7-13) • Rubric • Your Report • Header (Single Replacement Reactions) • Objective • Procedure & Materials: Refer to Handout • Data: Table attached • Discussion: • Errors/Improvements • Conclusion • Claim – given on handout; Evidence (signs of rxn-refer to table) • Science Concept (activity table, ionic compounds (aq); signs of rxn) • Lab Worksheet

  8. Lab #13 Write-Up (Due 2-26-13) • Rubric • Your Report • Header (3-D Molecular Models) • Objective: Write in report • Procedure & Materials: Refer to Handout • Data: Table attached • Discussion: • Questions #1-6; Errors/Improvements • Conclusion • Claim – given on handout; Evidence (Tables- explain VSEPR and shape) • Science Concept (hybridization; VSEPR models; polarity; intermolecular forces) • Lab Worksheet

  9. Lab #12 Write-Up (Due 2-18-13) • Rubric • Your Report • Header (Formulas from Puzzle Pieces) • Objective: State here • Procedure and Materials: Refer to Handout • Data: Shown in puzzle boxes on attached handout. • Discussion: • Questions on Handout • Conclusion (in paragraph form) • Claim (must include; given in handout) • Evidence (Puzzle boxes; cite examples) • Science Concept (Oxidation States – sum equals zero; multiple ox states ) • Lab Worksheet & Data Sheet attached

  10. Lab #11 Activity (Due 2-7-13) • Rubric • Lab Worksheet • Detecting Ions • Complete Table • Answer Questions

  11. Lab #10 Activity (Due 1-15-13) • Rubric • Lab Worksheet • Flame Test • Complete Table • Answer Questions

  12. Lab #9 Write-Up (Due 1-14-13) • Rubric • Your Report • Header (Observing Bright Line Spectra) • Objective • Procedure & Materials: Refer to Handout • Data: Spectra(on handout) • Discussion: • Questions; Errors/Improvements • Conclusion • Claim – given on handout; Evidence (Spectra) • Science Concept (electron energies, spectroscopy, continuous vs. line) • Lab Worksheet

  13. Lab #8 Write-Up (Due 1-7-13) • Rubric • Your Report • Header (The Periodic Table) • Objective • Procedure: Refer to handout • Data: Refer to attached tables and graphs • Discussion: • Questions (Type in report; include question) • Errors/Improvements (omit) • Conclusion • Claim – given on handout; Evidence (Graphs – state relationships and point to graphs as evidence of that observation.) • Science Concept (ion formation; metals vs. nonmetals, etc.) • Lab Worksheet

  14. Lab #7 Write-Up (Due 12-7-12) • Rubric • Your Report • Header (Effect of Pressure on Volume of a Gas) • Objective • Procedure & Materials: Refer to Handout • Data: Refer to Table in Handout • Graphs: Volume vs. Pressure(two graphs with all requirements) • Discussion: • Questions (called Prelab Questions) • Errors/Improvements • Conclusion • Claim; Evidence (refer to graph and PV=k relationship) • Science Concept (density and PV, properties of gases, etc.) • Lab Worksheet & Data Sheet attached

  15. Lab #6 Write-Up (Due 11-5-12) • Rubric • Your Report • Header (Measuring Specific Heat) • Objective • Procedure and Materials: Refer to Handout • Data: Organize your data in a table. • Calculations: Show equation, sub w/units; answer w/units. • Include heat lost by metal, gained by water; specific heat calculation, % error (make sure to state heat lost metal = heat gained by water). • Discussion: • Questions (Write or restate questions) • Errors/Improvements (explain experimentally!) • Conclusion (in paragraph form) • Claim (given on handout) • Evidence (Data table; cite examples) • Science Concept (Calorimetry, specific heat, conservation of energy) • Lab Worksheet & Data Sheet attached

  16. Lab #5 Write-Up (Due 10-19-12) • Rubric • Your Report • Header (Physical and Chemical Changes) • Objective • Procedure and Materials: Refer to Handout • Data: Include OBSERVATION TABLE in report • State evidence for chemical reaction; describe physical changes • Discussion: • Questions (Analysis); Errors/Improvements • Conclusion (in paragraph form) • Claim (given on handout) • Evidence (Observation table; cite examples) • Science Concept (Physical/Chemical changes; Evidence of chemical reactions; Dissolving as a physical change) • Lab Worksheet & Data Sheet attached

  17. Lab #4 Activity (Due 10-15-12) • Rubric • Lab Worksheet • Classifying Matter • Complete Table

  18. Lab #3 Write-Up (Due 10-9-12) • Rubric • Your Report • Header (Radioactive Decay Cards) • Objective: Determine and illustrate the radioactive decay of U-238. • Procedure & Materials: Refer to Handout • Data • Table: List of Nuclear Equations • Graph: Mass Number vs. Atomic Number • Discussion: • Type question then answer in report or answer by restating the question. • Errors/Improvements • Conclusion • Claim; Evidence (Refer to the graph for illustration of decay series) • Science Concept (Cause and consequence of unstable nuclei; n/p ratio for stability; define radioactivity; describe radioactive particles and dangers; etc.) • Lab Worksheet & Data Sheet attached

  19. Lab #2 Write-Up (Due 10-2-12) • Rubric • Your Report • Header (Atomic Mass of Beanium) • Objective • Procedure and Materials: Refer to Handout • Data/Graph: See data table on worksheet • Calculations: Avg. Atomic Mass: Method 1 vs. Method 2; % Error • Discussion: • Questions (WS); Errors and Improvements • Conclusion • Claim; Evidence; Science Concept (meaning of “average” atomic mass; refer to calc. in table; define isotope; elements are mixtures; etc.) • Lab Worksheet & Data Sheet attached

  20. Lab #1 Activity (Due 9-25-12) • Rubric • Lab Worksheet • Drawing Atomic Diagrams • Complete Table • Diagrams should show: • Nucleus with p+= ___ and no= ___ and highlighted in colored pencil. • Energy levels with # electrons labeled as eo =___

  21. Outlines for Lab Write-ups Regents Chemistry 2012-2013

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