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LARN 111 C28D3

Start the following in class:

1. In the upper right corner white space of each upward Journal notebook 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 days paragraph with a topic sentence, follow with explained instances, and close with a focused summary statement. .

The required focus topic, J111, for today is

  1. What is vapor pressure?
  2. How does the value of a substance’s vapor pressure vary with temperature?
  3. Liquids typically exist in containers with a gas filling the upper portion of the container. This gas above the liquid exerts pressure on the liquid.  What is the relationship between the vapor pressure of a liquid and the measured pressure of the gas above the liquid at a given temperature in a closed system?
  4. When the vapor pressure of a liquid is accurately measured at a given temperature, what name is given to its measured value?
  5. What is the relationship between the vapor pressure of a liquid and the temperature at which the liquid can boil?
  6. Give one or more examples to make your explanation of relationship between the vapor pressure of a liquid and the temperature at which the liquid can boil clearer.  Please make your answer to this question longer than one sentence.

2. Do all the pages in the Section Review packet for chapter 13.  Strive to understand every concept covered. Do not skip any question, nor any part of a question if you want to qualify for top level evaluation. Look up anything you don’t understand either in your class notes, text, glossary, vocabulary study sheet, or communicate with a classmate about the concept (but make sure you phrase your understanding with your own words, not your classmates, if you do). For each question or problem challenge, either answer the question to the best of your ability using one or more full sentences, or answer the problem to the best of your ability by recording any numbers and units together with the mathematical operations performed in symbolic terms, along with the solution to the problem which should be circled. This is an important assignment.

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

1. Continue to review the meanings of the words on the chapter 1, chapter 2, chapter 3, chapter 4, chapter 5, chapter 7, chapter 8, chapter 9, chapter 10, chapter 11, chapter 12, and chapter 13 vocabulary lists.  Place a – symbol in front of each word that you have to study more,and a change the- to a + symbol in front when you have demonstrated mastery over the word to a study buddy, parent, or friend.

2. Study the Key Concepts given on pages 33, 57, 95, 121, 148, 180, 206, 246, 280, 314, 346, and 378 of the text.

3. 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;and 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.

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

5. Think about the fifteen properties of covalent molecular substances listed on the Properties to be understood worksheet describing differences in the properties of metals, ionic compounds, covalent network solids, and covalent molecular compounds.  Continue to study this handout for understanding and review how the typical properties of members of these classes of compounds depend on whether the compound has localized or delocalized electrons, and upon whether strong metallic, ionic, or covalent bonding or weak van der Waals forces of attraction are predominant between representative particles of the substances.  Try to understand how each property of a given covalent molecular substance is related to the groups of covalently bonded atoms that form molecules whose van der Waals attractive forces only weakly attract other molecules.