Students: Just a reminder that your Unit 7 Test is on Wednesday, May 2nd. You should come to class with your completed Composition Book, and plan on taking advantage of additional time available at lunch and after school that date.
Composition Books will also be collected this week in order to assess grades on the three Labs in Unit 7.
On Tuesday and Thursday's classes this week, due to the testing schedule, our classes will begin new material on organic chemistry. Students should prepare for this material by reading Chapter 22 as soon as possible, but please note that your Unit 7 test is largely based on Chapter 19, with some material from Chapters 20 and 21. Nothing discussed on Tuesday's class will be on your exam the next day.
Monday, April 30, 2018
Monday, April 23, 2018
POWER POINT: ACIDS, BASES, SALTS
Mr.Hatfield's Chemistry students have completed their Notes on material from Chapter 19. They can download a copy of the Power Point containing those Notes HERE:
Students received a Study Guide based upon this section of Notes in Monday's class, but beginning tomorrow the class will transition into new material, on electrochemistry (chapters 20-21 in the text).
Students received a Study Guide based upon this section of Notes in Monday's class, but beginning tomorrow the class will transition into new material, on electrochemistry (chapters 20-21 in the text).
Sunday, April 15, 2018
VIDEO: OXIDATION REDUCTION REACTIONS
Tyler DeWitt has made a very handy, easy-to-understand video that uses the formation of an ionic compound (NaCl, sodium chloride) to illustrate the logic of oxidation-reduction reactions, sometimes called 'redox' reactions, as described in Chapter 20.
Tyler not only gives an example of oxidation numbers (20.2), but he also shows how to to use these numbers to describe 'half-reactions' (20.3)
While there is no worksheet based upon this video, this is highly-similar to how students will be introduced to these concepts in Lecture, and is worth repeated viewings:
Tyler not only gives an example of oxidation numbers (20.2), but he also shows how to to use these numbers to describe 'half-reactions' (20.3)
While there is no worksheet based upon this video, this is highly-similar to how students will be introduced to these concepts in Lecture, and is worth repeated viewings:
Wednesday, April 4, 2018
VIDEO: ACID-BASE EQUILIBRIUM
Students were shown this video in today's class. Paul Andersen demonstrates the centrality of water to most acid-base chemistry, and explains how to calculate equilibrium constants for acids (Ka) and bases (Kb), and how to express those as pKa's or pKb's:
SYLLABUS, UNIT 7
Students, here is the Syllabus for Unit 7, which focuses on acids, bases, salts, titrations and electochemistry. Please note that there are three sections of the textbook to review, and three labs in this Unit. On the day you receive this Syllabus in class, there will 45 days of instruction left in the semester:
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