LARN 071 C18D3
Start the following in class:
1. In your Journal Notebook write your journal entry on sheets of three holed 8.5 inch by 11 inch ruled paper.
- In the upper right corner white space of each upward facing page, use a blue or black pen to write your hand in number within a circle followed by your name.
- To the left of the marginal line, print J71 and circle it.
- 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.
- The required journal focus topic J71 for today is:
In the older method of naming ions of metallic elements that can form more than one positive ion when dissolved in water, the word endings -ous and -ic are used.
a. What does the suffix -ous mean when it is used as part of an ion name?
b. What does the suffix -ic mean when it is used as part of an ion name?
What do suffixes -ide, -ite, and -ate mean?
c. Select four (4) different elements that form two or more differently charged ions when dissolved in water, and write the symbol for the ion, followed by the “classical” name for the ion and the Stock name for the ion.
2a. Use the PQ5R or SQ5R method to prepare study guide for text section 9.2 on Naming and Writing Formulas for Ionic Compounds or go to https://socratic.org/chemistry to research the topics brought up in section 9.2 of your text. Read section 9.2 in your chemistry text, pages 260 through 267, and as you do, create a study guide using the SQ5R or PQ5R method explained in class and on the distributed handout packet. CAUTION: TO PREDICT AN IONIC FORMULA CORRECTLY, ALWAYS USE THE LEAST COMMON MULTIPLE METHOD EXPLAINED ON PAGE 262 OF THE TEXT, not the crisscross method explained on the same page which can yield wrong answers on occasion. You may record vocabulary entries in the body of your study guide, or you may check them off on the chapter 9 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 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 a descriptive title for the learning activity such as Section [chapter #.section#] Responses. 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.
- CAUTION: TO PREDICT AN IONIC FORMULA CORRECTLY, ALWAYS USE THE LEAST COMMON MULTIPLE METHOD EXPLAINED ON PAGE 262 OF THE TEXT, not the crisscross method explained on the same page which can yield wrong answers on occasion.
- Use your table of common ions in doing the following problems.
- Study Conceptual Problem 9.2 on page 263 and then show your work for practice problems I9-10abcd (In chapter 9, problems 10a, b, c,and 1d) and I9-11abcd. Show all of your LEAST COMMON MULTIPLE METHOD work clearly.
- Study Conceptual Problem 9.2 on page 265 and then show your work for practice problems I9-12ab and I9-13ab. Show all of your LEAST COMMON MULTIPLE METHOD work clearly.
- In the Section Assessment 9.2 on page 266, read, analyze, and show your work for practice problems I9-14, I9-15, I9-16, I9-17abcd, I9-18abcd, and I9-19abcd. Show all of your LEAST COMMON MULTIPLE METHOD work clearly. For example, LCM(2,3) = 6
- After you are finished, check page R89 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.
3. Review or complete the Writing the Formulas of Ionic Compounds worksheet assigned in chapter 7.
- Write each formula correctly twice as shown in the three examples on the sheet and the additional examples done in class.
- In the top rectangular space the positive and negative charges along with the proper parentheses and subscripts to make an electrically neutral formula unit should be shown.
- The final version of the formula written in the rectangular space below the first should just be the empirical formula for the compound with parentheses being used only when there is more than one polyatomic ion.
Recommended for those who have time left in their 45 minute study period, but not required of all:
1. 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 9 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 chapter 9 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 5 through 7.
2. Check out the student made Quizlet for chapter 9 at https://quizlet.com/178902510/ch-9-chemical-names-and-formulas-flash-cards/ . Do all the definitions reflect a thorough and correct understanding?
3. If you wish to learn a simple way to remember the formulas and charges of common oxyanions whose names end in -ate, check out these videos:
T43 Mnemonic for Polyatomic -ate Oxyanions and T43 Mnemonic for Polyatomic -ate Oxyanions
including the metasilicate ion, SiO32-
Or the 74 Mnemonic for Polyatomic Oxyanions including the orthosilicate ion, SiO44- or 74 Mnemonic for Polyatomic Oxyanions