
Chapter 2:
Data Analysis
Section 2.1 Units of Measure1. Define SI base units for time, length, mass, and temperature. 2. Explain how adding a prefix changes a unit. 3. Compare the derived units for volume and density.
Section 2.2 Scientific Notation and Dimensional Analysis 1. Express numbers in scientific notation. 2. Use dimensional analysis to convert different units of measure.
Section 2.3 How reliable are measurements? 1. Define and compare accuracy and precision. 2. Use significant figures and rounding to reflect the certainty of data. 3. Use percent error to describe the accuracy of experimental data.
Section 2.1 Units of Measurement
 8/9/2016 Practice Problems from whiteboard
Given Find Equality
25 in ? feet (12 in = 1 ft)
68 m ? cm (100 cm = 1 m)
5.5 qts ? gallons (4 quarts = 1 gal)
92 mL ? L (1000 mL = 1 L
 8/10/2016 The 5 problems for tonight's HW are in the whiteboard. Take this link to get Monday, Tuesday, and Wednesday Whiteboards and Lessons. On pages 2728 of the Whiteboard PDF file you will see the word problems for tonight's HW. For word problems 13, I have identified the EQUALITY, GIVEN, AND FIND for you. Problems 4 & 5 you must identify them. Don't copy the entire word problems. Just write down the GIVEN, FIND, EQUALITY, and show the calculation.
 8/19/2016 LINK for Virtual Density lab from PhET
 8/23/2016 LINK for MiniLab done today. Reading 4beam balance
 8/23/2016 LINK for video shown in class  How to read 4Beam Balance
 8/24/2016 Complete your procedure for today's lab. (10 pts)
 8/26/2016 Write procedure for today's density lab on H2O and ethyl alcohol (5 pts)
 8/12/2016 Complete Unit Cancellation with HW worksheet
 8/15/2016 From today's handout (Density Problems  Calculations with Grids  Assignment 1: work problems 14 . (5 pts)
 8/16/2016 Complete worksheet (Density Assign 1) probs 510 (start in class) (5 pts)
 9/7/2016 Density Problems Calc w Grids  Assign 2  Problems 15 (Link today's handout)
 9/6/2016 p. 50 #72,73,74 and 75 a,b and 76 a,b (5 pts)
 9/7/2016 Practice Quiz Ch 2 (handout) 15 only (5 pts)
 8/9/2016 Video Link :
Tyler DeWitt on unit cancellation basics. Take notes for background
 8/9/2016 Video Link :
How to do unit cancellation  Mr. Wigger explains
 8/15/2016 VIDEO LINK  for dancing raisins, done as demonstration in class today
 8/23/2016 LINK for video shown in class  How to red rBeam Balance  POSTED ON YouTube on my channel
 8/25/2016 Write procedure for today's density lab on Al blocks (5 pts)
 10/3/2016 Practice Quiz Ch 3, 2 problems 1426 (5 pts)
 9/30/2016 Quiz Ch 3 problem 113


Section 2.2 Scientific Notation and Dimensional Analysis
 8/23/2016 p. 33 16 a,b,c,d (5 pts)
 8/29/2016 p. 32 12 a,b,c,d,e,f,g,h & 13 a,b  10 problems (5 pts)
 8/29/2016 VIDEO LINK for Tyler Dewitt on Sig Figs  great help for your homework on scientific notation
 8/29/2016 ROUGH DRAFT OF COMPLETE LAB REPORT  Put the three procedures from last week together in one type written report. Anyone's paper I grade tomorrow in front of the class will be able to be redone for full credit and turned in on Wed. If the report I grade has no deductions, that student has full credit and has no homework tomorrow.
 8/29/2016 LINK for my lab procedures that I gave to my students last year. This is a good model for doing your written procedure.
 9/7/2016 Practice Quiz Ch 2 (handout) 15 only (5 pts)
 8/31/2016 p. 32 14 a,b,e,f (5 pts)
 10/3/2016 Practice Quiz Ch 3, 2 problems 1426 (5 pts)
 9/30/2016 Quiz Ch 3 problem 113


Section 2.3 How reliable are measurements?
 8/19/2016 Textbook p. 895 6 k,l,m,n,o,p,q,r,s,t,u 11 problem (5 pts)
Directions: For each problem write:
(a) original number;
(b) the number of sig figs; (c) rule used to figure sig figs;
 9/7/2016 Practice Quiz Ch 2 (handout) 15 only (5 pts)
 8/18/2016 Text book p. 895 6 a,b,c,d,e,f,g,h,i,j  10 problems
DIRECTIONS: Write (a) original #; (b) rule used to figure sig figs; (c) # sig figs
 8/18/2016 VIDEO LINK  Tyler DeWitt's video "Why are significant figures important?"  I played this video in class today and you took notes on it.
 8/18/2016 VIDEO LINK  learning sig figs with "Counting Sig Figs the Easy Way"  as I introduced it in class today after we watched the Tyler DeWitt video.
 8/18/2016 LINK  for "Counting Sig Figs The Easy Way"  today's handout, which was used in my video above.
 10/3/2016 Practice Quiz Ch 3, 2 problems 1426 (5 pts)
 9/30/2016 Quiz Ch 3 problem 113


Section 2.4 Representing Data


Section 2.1 Units of Measurement
 8/12/2016 Complete Unit Cancellation with CW worksheet (see link)
Be sure your notebook is ready for grading, then start your CW due end of the period in the white basket (5 pts)
 8/17/2016 DO NOW
(show given, find, and calculation, cancel units of measure)
a. Given 45 cm3 C (carbon), how many g will you have (density in text p 914)
b. Given 45 cm3 H2O (water), how many g will you have (density H2O = 1g/cm3)
 8/22/2016 DO NOW
VIRTUAL Density Lab from PhET (done on today's handout  see link in HW section)
 8/25/2016 DO NOW
a. How did you measure the volume of the metal cylinder yesterday?
b. How do you think you will get the volume of our Al blocks today (look & see)
 8/26/2016 DO NOW
a. What data did you need to calculate the volume of the Al block from
yesterday?
b. How do you think you will get the volume of both ethyl alcohol and water?

Section 2.2 Scientific Notation and Dimensional Analysis
 10/28/2016 CLASS WORK
Density Practice Fillin Chart 4  due end of period.

Section 2.3 How reliable are measurements?
 9/1/2016 p. 51 #77 ae with correct sig figs (5 pts) due end of period

Section 2.4 Representing Data


Section 2.1 Units of Measurement
Standard 4 e  Gases and their Properties
View Standard 4 State Standard: How to convert between Celsius and Kelvin temperature scales.
Students Will be able to:Demonstrate a knowledge of the Kelvin scale and compare it to the Celsius scale. Book Reference Pages: 2530
Standard 6 D  Solutions
View Standard 6 State Standard: How to calculate the concentration of a solute in terms of grams per liter, molarity, parts per million and percent composition.
Students Will be able to:Prepare solutions to demonstrate their knowledge of the different units of concentration. I&E (12A): Select and use appropriate tools and technology (such as computerlinked probes, spreadsheets and graphing calculators) to perform tests, collect data, analyze relationships, and display data. Book Reference Pages:
Standard 6 E  Solutions
View Standard 6 State Standard: The relationship between the molarity of solute in a solution, and the solution's depressed freezing point or elevated boiling point.
Students Will be able to:Book Reference Pages:


Section 2.2 Scientific Notation and Dimensional Analysis
Standard 4 E  Gases and their Properties
View Standard 4 State Standard: How to convert between Celsius and Kelvin temperature scales.
Students Will be able to:Demonstrate a knowledge of the Kelvin scale and compare it to the Celsius scale. Book Reference Pages: 3135
Standard 6 D  Solutions
View Standard 6 State Standard: How to calculate the concentration of a solute in terms of grams per liter, molarity, parts per million and percent composition.
Students Will be able to:Prepare solutions to demonstrate their knowledge of the different units of concentration. I&E (12A): Select and use appropriate tools and technology (such as computerlinked probes, spreadsheets and graphing calculators) to perform tests, collect data, analyze relationships, and display data. Book Reference Pages:
Standard 6 E  Solutions
View Standard 6 State Standard: The relationship between the molarity of solute in a solution, and the solution's depressed freezing point or elevated boiling point.
Students Will be able to:Book Reference Pages:
Standard 99 A  Miscellaneous
View Standard 99 State Standard: Miscellaneous
Students Will be able to:In the notebook you use every day in class, file pages here that:
a) don't fit a particular standard
b) fit in more than one standard
c) will be we used frequently during the year Book Reference Pages:


Section 2.3 How reliable are measurements?
Standard 4 E  Gases and their Properties
View Standard 4 State Standard: How to convert between Celsius and Kelvin temperature scales.
Students Will be able to:Demonstrate a knowledge of the Kelvin scale and compare it to the Celsius scale. Book Reference Pages: 3742
Standard 6 D  Solutions
View Standard 6 State Standard: How to calculate the concentration of a solute in terms of grams per liter, molarity, parts per million and percent composition.
Students Will be able to:Prepare solutions to demonstrate their knowledge of the different units of concentration. I&E (12A): Select and use appropriate tools and technology (such as computerlinked probes, spreadsheets and graphing calculators) to perform tests, collect data, analyze relationships, and display data. Book Reference Pages:
Standard 6 E  Solutions
View Standard 6 State Standard: The relationship between the molarity of solute in a solution, and the solution's depressed freezing point or elevated boiling point.
Students Will be able to:Book Reference Pages:
Standard 12 b  Investigation and Experimentation
View Standard 12 State Standard: Identify and communicate sources of unavoidable experimental error.
Students Will be able to:Book Reference Pages: 38, 39
Standard 99 A  Miscellaneous
View Standard 99 State Standard: Miscellaneous
Students Will be able to:In the notebook you use every day in class, file pages here that:
a) don't fit a particular standard
b) fit in more than one standard
c) will be we used frequently during the year Book Reference Pages:


Section 2.4 Representing Data
Standard 12 a  Investigation and Experimentation
View Standard 12 State Standard: Select and use appropriate tools and technology (such as computerlinked probes, spreadsheets and graphing calculators) to perform tests, collect data, abaktze relationships, and display data.
Students Will be able to:Book Reference Pages: 4345



 Quiz Ch 3,2: Half of this Quiz will be on Ch 3, half will be Ch 2. My On Line Practice Quiz for Ch 3 (incl Ch 2); my Review; and On Line Practice Quizzes from Glencoe (link that looks like globe)
 Quiz Ch 4,3,2: Half of this Quiz will be on Ch 4, the rest will be on Ch 2 & 3. OnLine Practice Quiz for Ch 4 (incl Ch 2 & 3). On Line Practice Quizzes from Glencoe at this link:
 Quiz Ch 2 & Density Lab: Use my online practice quiz (Computer Icon link) with 12 questions directly from the quiz you will be taking. The Glencoe practice quizzes (World Globe Link)and also very helpful.)
Conversion
● Mathematics in Chemistry Visit Site
● Using Your Calculator Visit Site
● Converting units of measure  the "1" concept Visit Site
UNIT CANCELLATION tutorial. Excellent for beginners to dimensional analysis (unit calcellation). This is interactive and explains as you go step by step. EXCELLENT Visit Site

Density
● Density  Simple and Interactive Tutorial Visit Site
● Density Problems  with Answers, interactive word problems(CSUDH)  Excellent Visit Site
● Density problems interactive with answers,gives one question after another, but just one at a time, variables change(CSUDH)  Excellent Visit Site

General
● Triple Beam Balance, interactive reading mass Visit Site
● Free conversion calculator to convert anything to anything Visit Site
List of helpful sites Visit Site

SI Base Units
● SI Units  Explained with very comlete definitions, background of derivation, and more (NIST). Visit Site

Significant Figures
● Significan Figure practice, interactive, gives one question after another, but just one at a time. (CSUDH) Visit Site
● Multiplication and division of sig figs is professionally demonstrated here (Video Chem Textbook) Visit Site
● Addition and subtraction of sig figs professionally demonstrated (Video Chem Textbook) Visit Site

Wigger Vids
● SI Base Units Explained (PART 1)  follows my tutorial by the same name, and covers the chart at the top of the page. Visit Site
● SI Base Units Explained (PART 2)  follows my tutorial by the same name, and covers the bottom of the tutorial. SI Base Units are explained in more depth, and Derived Units are explained. Visit Site
● Watch this Video  it was recorded during 6th period today 9/3/10. It will help you will SCIENTIFIC NOTATION and WORKING WITH POWERS OF 10. My apologies on not making the video take up the full screen. OOPS! Visit Site
● Here is your video on Density Problems  Calculations with Grids  1. This goes through 3 problems showing you all the steps and how to show your work. Visit Site
● 4Beam Balance Scale>  This video demonstrates how to read a 4beam Balance Scale Visit Site
● Add, subtract, multiply, divide powers of 10 Visit Site



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