LARN 148 C37D4

Start the following in class:

1. Write your journal entry on sheets of three holed 8.5 inch by 11 inch ruled paper in your Journal notebook. In the upper right corner white space of each upward facing page, write your hand in number within a circle followed by your name. Each journal entry should either be at least a paragraph of exemplary writing and penmanship concerning a single topic, or be a concept map relating chemistry terms. Begin each day’s paragraph with a topic sentence, follow with explained instances, and close with a focused summary statement.  Rather than just to find answers to questions, the goal of journaling is to reflect on, synthesize, and clearly express your thoughts in statements of your own understanding, so do not paraphrase material from other sources that you do not understand.

a. The required focus topics, J148A, are

  1. How can one predict a shift in chemical equilibrium using collision theory?
  2. What does Le Châtelier’s principle state?
  3. How does the point of equilibrium for a chemical system shift as a result of impressing a stress on the chemical system?
  4. How does increasing the concentration of a reactant affect the point of equilbrium of a chemical system?
  5. How does increasing the temperature of reactants and products affect the point of equilbrium of a chemical system?
  6. How does increasing the pressure of a gaseous reactant affect the point of equilbrium of a chemical system?

b. The required focus topics, J148B, for today are

a. What is the common ion effect?  Please make your response to this question longer than one sentence.

b. For a slightly soluble or insoluble ionic compound, what happens when the product of the concentrations of the individual ions, each species being raised to the power shown in the balance chemical expression, exceeds the value of the solubility product constant at the specific temperature?  Explain your answer thoroughly.

2. Refer to page 581 and on a new page of your Learning Log for some end of chapter questions and problems.  On that page write full sentence responses to problems E18-48, E18-49, E18-50, E18-52abc, and then do problem E18- 51ab.

3.a.  Use the PQ5R or SQ5R method to prepare study guide for text section 18.4 on Entropy and Free Energy or go to https://socratic.org/chemistry  to research the topics brought up in section 18.4 of your text.  Read section 18.4 in your chemistry text, pages 566 through 573, 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 18 vocabulary list that was distributed as you think about the meanings of the terms and add any notations to the vocabulary list for clarifications sake.

3.b.  After you have finished reading the assigned section of the chapter, answer the formative assessment questions and do some formative assessment problems to inform you about the degree of your comprehension and understanding.  Assessment questions are printed at the end of the section that you have just read.  Reflect on your answers to assure yourself that you have understood the major points in the section that you have just read.  Record your responses to questions that are challenging you, so that you can later review what you are learning.  If all problems seem easy to you, record the response to the problem that was least easy for you to answer.

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 piece of three holed composition paper 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 a descriptive title for the learning activity such as Section C1.4 Responses where C1.4 represents Chapter1.section4.  Before you write your response to each question or problem listed below, write its designation to the left of the red marginal line as listed below, followed by your response in ink to the right of the marginal line.

  • In the Section Assessment 18.4 on page 573, read, analyze, describe and explain practice problems I18-29 (In chapter 18, problem 29), I18-30, I18-31, I18-32, I18-33abc, I18-34ab [Explain.], and I18-35.

After you have finished responding to the formative assessment questions and problems, check page R97 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.  Write down any question that you still have so that you can ask about it in class.  In the margin of your notebook page, circle the number of formative assessment questions do not have a suggested response given 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. Review those concepts that we have discussed in class that are in your study guides, that are in your text study guide at the end of the chapter, and that on the chapter vocabulary sheet provided to you that describes what is a substance, an element, a compound, a coarse mixture, a colloidal suspension, a solution; an atom; a formula unit, a molecule; a phase, an aqueous phase; a chemical change, a physical change; a chemical reaction, a reactant, a product, a word equation, and a formula unit equation. How are these concepts different? You need to be able to explain the meaning of each of these terms, and be able to differentiate the terms, be able to compare and contrast these related terms, and give examples that make clear the points that you are trying to explain. Go over each of these concepts with your study partner.

2. Review the SI prefixes and their meanings until you can readily explain the meaning of each listed SI prefix as a numerical multiplier.