Homework for September 21; Project

Honors Chemistry:  Carefully read Section 4.1 and 4.2 (p 66 - 76) in your text.  We will talk about this new material on atomic structure in class. 

Chemistry:  Study Section 3.1 and 3.2 (pages 100 - 109) in your text.  Be prepared to answer questions about what you read. 

Tomorrow in class I will introduce your 'Early Models of the Atom' project.  It could also be called 'Early Heroes of Chemistry and Physics.'  This is a small-group project.  You will study in depth the experiments of one of the pioneers whose work led to modern Atomic Theory.  You will recreate their great experiments for the class. 

Unit Test on Monday, September 20

Monday's Unit Test will be on fundamental chemical math.  The test in the Honors section will be more problem-intensive than in the non-Honors sections.  Students (you) will need a calculator.  The test will cover:  scientific method; SI Units and the metric system; common SI prefixes; accuracy, precision and percentage error; scientific notation; calculation using scientific notation; significant digits, significant digits in calclulations, and rules for rounding using significant digits; temperature conversions; other conversion factors; dimensional analysis and chain calculations using conversion factors;  and density calculations.

Homework for all sections is to study for these tests.  Some of the problems on the test(s) may be similar to problems covered in class on Thursday and Friday.

Homework for September 16

Honors:  Continue with significant figures, calculations using significant figures, and scientific notation. 

C D Chemistry:  Read pages 63-68 in text.  Study carefully and remember Rules for significant figures on pages 66 and 67.  Do problems 1-2 on page 68.  Also:  Math Handbook aticle on significant figures on page R59.  Do problems 1-2 on page R61.

Homework for September 15

Honors Chemistry:  Read pages 40-42 & 44-54 in text.  Do problems 1-6 on page 42; 1-2 on page 45; 1-2 on page 48; and 1-4 on page 50.  Bring questions to class.

C D Chemistry:  Read page 80-81 and 84 in text.  Solve problems 32-33 on page 84; plus worksheets handed out in class.

Week of September 13 -17; Homework for September 13

Chemistry is a quantitative science.  We will spend the entire week studying and practicing beginning chemical math, ending with a unit test on Friday.

B Chemistry:  Homework:  Read pages 29-38 and page 55.  Do problems 1-14 and 16-22 on page 59.

C D Chemistry:  Homework:  Read pages 63, 73-79 and answer questions 18-26; also read R69 - R70 (to the middle of the page) in the back of the book; and solve problems 1-4 on page R71.

Homework for September 8

Honors Chemistry:  Small Test on Safety and Chapter 1 first thing tomorrow.  To prepare, study your vocabulary and do Standardized Test Prep Page 25 1-13.

Chemistry:  Small Test on Safety and Chapter 2 first thing tomorrow.  To prepare, do review questions p58-60 questions 49,50, 52-54, 57, 58, 60-63, 64, 67, 69 and 77.  Study your vocabulary flash cards.

Homework for September 7

Welcome back from the Labor Day holiday.  You should all turn in your first Lab Report today.  Your lab reports, your journalling, and any other writing you do in Chemistry will help you to become a better scientist or other professional.  One mark of a professional is good writing.  Clarity is the most important element of that writing:  can someone else, reading your work, see what you saw and understand what you understood?

Honors Chemistry:  We will have our first test on Safety, Lab procedure, and Chapters 1 first thing on Thursday.  Some of your homework for tonight, and all of your homework for Wednesday will be review.  We will also have some time for review in class on Wednesday.

For tomorrow, re-read Section 1.3 (pages 16-20), make flash cards for the vocabulary words for 'Elements' on page 21.  Do problems 16-29 on page 22 and 23.  Go back and review Sections 1.1 and 1.2.  Your test will also include some practical work in the lab.

Chemistry:  We will have our first test (a large quiz) on Safety, Lab procedure, and Chapters 1-2 first thing on Thursday.  Your test will be different from the honors section.  Most of it will be objective, although you may be expected to draw, and possibly interpret one or more things in the lab. Some of your homework for tonight, and all of your homework for Wednesday will be review. We will also have  time for review in class on Wednesday.

For tomorrow, read pages 48-55.  Make flash cards for the vocabulary words on pages 44, 48 and 53.  Do problems 20-27 on page 52 and 28-33 on page 55.  We will discuss all this in class on Wednesday.