by horse Comment Closed

LARN 101 C26D1

Start the following in class:

1.  Do the next equation mole ratio problem assigned on LARN 99.

2.a.  Use the PQ5R or SQ5R method to prepare study guide for text section 12.3 on Limiting Reagent and Percent Yield or go to https://socratic.org/chemistry  to research the topics brought up in section 12.3 of your text.  Read section 12.3 in your chemistry text, pages 368 through 378, and as you do, create a study guide using the SQ5R or PQ5R method explained in class and on the distributed handout packet.   You may record vocabulary entries in the body of your study guide, or you may check them off on the chapter 12 vocabulary list as you think about the meanings of the terms and add any notations to the vocabulary list for clarifications sake.

2.b.  Writing in blue or black ink, place your hand in number in a circle followed by your name in the upper right white space of a separate piece of three holed composition paper in your Learning Log that hasn’t been written on.  Place the page reference for the problems to be considered to the left of the red marginal line on the first blue line.  Centered on the first blue line, write C12.3 Limiting Reagent and Percent Yield Problems.   Write the designation of each problem that you do to the left of the red marginal line.  To the right of that line, in ink, show the setup and answer for each problem that you do.  Of the problems listed below, do at least two problems a day for the next four (4) days starting on p.370.  Each day do at least one problem highlighted in red and/or one problem highlighted in yellow. 

  • If you need a refresher or assistance in writing conversion ratios and showing your work, please read through pages R66 and R67 and study how the conversion factors were selected, and set up so that the units in the problem divided out to yield the units of the sought for quantity. Note how the work shown completely explains how the six problems given on page R66 are solved.
  • Review the handout on learning dimensional analysis (first gone over in chapter 3).  Also review how to calculate with significant figures by studying the CHEMath sidebar on page 361 and by reviewing your notes on significant figures from your study of chapter 3.
  • For each of the problems that require an amount of substance being produced or used up, show your work as gone over in class and in the chapter flipchart as follows:
    • 1.  Record the balanced chemical expression with formulas , phases, and correct coefficients
    • 2.  Record a ? followed by the unit of the sought for quantity, and the number and unit of the given quantity written under the formulas of the sought for and given substances in the chemical equation
    • 3.  Record the setup for the solution to the problem.  Recall that a setup is     
      •  ?  units of that which is sought =  the given quantity x appropriate conversion ratios = answer
      • Show the crossing out of any like units in numerators and denominators of different ratios.
      • Calculate the numerical portion of the answer and record it followed by the unit of the sought for quantity.  Circle or box in your result rounded to the proper number of significant figures.
  • Study Conceptual Problem 12.7 on page 370 to reflect on one way of determining the limiting reagent in a reaction.  Show your work as described above for practice problems I12-25 (In chapter 12, problem 25) and I12-26.
  • Study Sample Problem 12.8 on page 371 and then show your work as described above for practice problems I12-27ab (In chapter 12, problem 27ab) and I12-28.
  • Study Sample Problem 12.9 on page 374 and then show your work as described above for practice problems I12-29 (In chapter 12, problem 29) and I12-30.
  • Study Sample Problem 12.10 on page 375 and then show your work as described above for practice problems I12-31 (In chapter 12, problem 31) and I12-32.
  • In the Section Assessment 12.3 on page 375, answer questions I12-33 and I12-34, and read, analyze, and show your work as described above for practice problem I12-35.
  • After you are finished, check page R92 of the text and check each of those problems that you can by writing in either a check mark (√) or a correction in green ink as we do in class.  Some questions do not have a suggested response given.  For each such question, circle the number of the question in the margin of your notebook paper and check your response with that of your classmates when you come to class.

Recommended for those who have time left in their 45 minute study period, but not required of all:

1. View 

2.   Download current ActivInspire unit flipchart by logging on to the MNSD Google Drive and selecting it from the Student Resources > ActivInspire  folder.  Generally the flipchart name will begin with a capital U to designate the chemistry unit of study and end in a relatively high version number following the v at the end of the flipchart’s title.  Download the flipchart on stoichiometry after clicking on the following link: Stoichiometry .  Click through the chart quickly and take Cornell notes on concepts pertaining to the learning objectives that you are studying.  At the end of your study, write a summary statement of what you learned.

3.  Download and open the Unit Learning Objectives for Cornell Notes document, press and hold the CTRL key while typing F to bring up a search (find) box.  Type in Chapter 12 in the search box and then move your cursor into the text area to the right and click there to see the first page of objectives.  Consider each learning objective as you proceed through the chapter with the aim of being able to demonstrate your understanding and ability to apply the learnings.  For now, study and take Cornell notes on objectives 3, 4, 5, and 9.

4. In POGIL FOC5 Activity 04-2 Limiting Reactants, work through and record your responses to Key Questions 1 through 14, and Exercises 1 through 4 only.  If you don’t have a copy of the activity, you can click on the following link, POGIL FOC5 Activity 04-2 Limiting Reactants, or go to your Google Drive > Student Resources >  POGIL Foundations of Chemistry, 5th > 04-2.pdf.

SKIP the following during the 2019-2020 school year.

1. Complete your write up a laboratory report for the investigation that you recently had an opportunity to perform in class.  Word process at least the Conclusions and References sections, print them out, arrange the pages of the report in numerical order, square up the pages to the upper left corner of the paper and staple the pages together with the staple only a millimeter away from the edges of the paper, and bring the report to your next class.

2.  Log in to www.turnitin.com and submit the entire laboratory report for laboratory investigation U02-2F Identification of Dyes by Chromatography formal laboratory report, and Conclusions and References for U05-5 Modeling the Shapes and Polarities of Some Covalent Molecules, U05-3M Investigating Alloys, and the Conclusions and References for U07-02 Chemical Reactions.

Follow these instructions:

     The Procedure for Word processing, Saving, and Uploading to Turnitin.com:

To word process your sections of your report, either work from the original electronic copy of your laboratory handout or from a laboratory template.  Locate it at Google Drive > Student Resources > Laboratory Activities > Honors Chemistry Guided Inquiries, make a copy of it, download it, and rename it as described in the instructions given below.

For your Conclusions, go on and clearly state each original Problem question and the evidence and reasoning in support of your response to each Problem question. Be sure to offer a thorough discussion of each Problem question that leads up to your stated answer in each case.  Create smooth transitions between your minimum of six paragraphs in your Conclusion section that address different important aspects of your laboratory investigation.

  • Save your laboratory report to your MNSD Google drive for easy access at school in the Lastname_First name_LaboratoryReferenceDesignation LaboratoryInvestigationName format.  Also save your file to your chemistry flash drive and put the flash drive in your zippered, grommeted pencil case that you take to school.
  • Peer review
    • Once the laboratory report has been completed, print off a copy of it. Submit the report to a fellow student for him/her to note in purple ink whether the report has any omissions, simple mistakes or oversights, deficiencies or other problems that need to be rectified before submission to the teacher for assessment. After the notebook or laboratory report is returned to you, improve your report in any area marked by your peer for your supplementation, editing or revising, and then review your report yourself to make sure that you have clearly expressed what you desired to express in each section of the report.
  •  Peer reviewer’s signature in purple ink
    • After using a rubric and the RACDES* mnemonic to check the laboratory notebook and laboratory report, the peer reviewer should sign his/her name in purple ink below the other information given in the heading on the first page of the laboratory notebook and laboratory report.  Without being peer reviewed a report does not qualify for top level evaluation.
  • After you are satisfied that you have prepared your best work, resave your report and upload your saved word processed Analysis and Conclusions and Reference section of your laboratory report to your chemistry class’ account at  http://www.turnitin.com before the due date.   To join your Turnitin.com chemistry class, first obtain your class’ enrollment key from your teacher and follow the instructions at How to Set Up and Use a Turnitin Account.
  • You also need to turn in a complete paper copy of your laboratory report to your teacher.  Any hand written pages need to be stapled together in page number order with the sections that you were required to word process and print out.  Include all pages of the original handout including your teacher signed hand written “Results or Observations” pages. 
  • Personally hand in your completed laboratory report to your teacher.  If your class does not meet on the due date, stop by before or after school or between classes to turn in your report so that you get your report in on time.  For all Guided Inquiry reports, print off a copy of the Conclusion and References sections and attach them in numerical page order to your written laboratory report before you hand it in.