Chapter 1 Matter and Measurements

The Periodic Table of Elements

The Most Common Elements (memorize these) mmon_elements mmon_elements mmon_elements mmon_elements Know the name and symbol. Be ready for a quiz!! (Change the spelling of Sulfur from Sulphur) Know the name and symbol. Be ready for a quiz!! (Change the spelling of Sulfur from Sulphur)

Chapter 1-1 Vocabulary Define and give 2 examples of the following Complete using the internet. Type in Word, save to your drive and to me. Element Element Compound Compound Mixture Mixture Homogeneous Mixture Homogeneous Mixture Heterogeneous Mixture Heterogeneous Mixture

Element ADventure Webquest time!!! Webquest time!!! 017/quest.html 017/quest.html 017/quest.html 017/quest.html

Online Quiz o.html o.html o.html o.html

Movie Day! Matter and Its Properties: What Makes Up Matter? Matter and Its Properties: What Makes Up Matter? Quiz to follow! Quiz to follow!

Chapter 1-2 Vocabulary Define and give 2 examples of the following Complete using the internet. Type in Word, save to your drive and to me. Unit Unit English System English System Metric System Metric System International System (SI) International System (SI) Significant Figures Significant Figures

Complete the following Chart for the SI Units of Measurement Physical Quantity Name of Unit Symbol Mass Length Temperature Time Amount of a Substance Electric Current Luminous Intensity Use:

Complete the following SI prefixes PrefixSymbolMeaning Power of 10 for scientific notation M1,000, K H Name of unit here D C M Μ N Use:

SI Unit Review cact/c120/siunits.html cact/c120/siunits.html cact/c120/siunits.html cact/c120/siunits.html

Counting Significant Figures Counting: Counting: –With a decimal: –Without a decimal: Try these!! Try these!! Extra Practice: Extra Practice: – res.html res.htmlhttp://science.widener.edu/svb/tutorial/sigfigu res.html – 1/measurement/sigfig-quiz.shtml 1/measurement/sigfig-quiz.shtmlhttp://antoine.frostburg.edu/chem/senese/10 1/measurement/sigfig-quiz.shtml

Rules of Significant Figures Use Use How do we know how many figures (numbers) to write when we are adding or subracting 2 or more numbers? How do we know how many figures (numbers) to write when we are adding or subracting 2 or more numbers? –Using this information, find the answer to the following:  =  =  – 5.00 = How do we know how many figures (numbers) to write when we are multiplying or dividing 2 or more numbers? How do we know how many figures (numbers) to write when we are multiplying or dividing 2 or more numbers? –Using this information, find the answer to the following: –35.72 ( ) = – / 2.4 = –4450 ÷ 5.00 =

Significant Figure Practice figures.html figures.html figures.html figures.html /101/measurement/sigfig-quiz.shtml /101/measurement/sigfig-quiz.shtml /101/measurement/sigfig-quiz.shtml /101/measurement/sigfig-quiz.shtml

Unit Conversions Temperature Temperature –Kelvin: –Celsius: –Fahrenheit: Practice these conversions: Practice these conversions:  320K = ______________________ °C  25°C = ______________________K  37.0°C = _____________________K  -62°C = ______________________K  50K = _____________________°C  163°C = _____________________K

Dimensional Analysis Try this website: mensionalanalysis.php Try this website: mensionalanalysis.php mensionalanalysis.php mensionalanalysis.php  Because there are two different units for any measurement, we need to be able to convert between the two.  Common conversions: (You will be given these, you do not have to memorize them! YAY!)

Dimensional Analysis Steps –Write what you know –Form a ratio using your conversion charts. –Be sure your units cancel out –Multiply across the top and divide by what is on the bottom. –Check your number of significant figures. –Make sure your answer makes sense.

Try These! 1. How many hours in days? 2. An Italian bicycle has its frame size given as 62cm. What is the frame size in inches?

3. The length of a marathon is 26.2 miles. What is this distance in kilometers? 4. According to a highway sign, the distance from St. Louis to Chicago is 295 miles. How far is this distance in kilometers?

5. A certain US car has a fuel efficiency rating of 36.2 miles per gallon. Convert this to kilometers per liter. 6. How many seconds are we in school every year? (We are in school 180 days per year, 6 and a half ours each day.)

Properties: Chemical vs. Physical What is a chemical property? What is a chemical property? What is a physical property? What is a physical property? What does intensive and extensive mean? What does intensive and extensive mean? –Hint: /lessons/lesson15.htm

Solubility Define solubility: Define solubility: Solve this problem: Solve this problem: –Taking the solubility of potassium nitrate, KNO3, to be 246 g/ 100 g of water at 100°C and 32 g / 100 g of water at 20°C, calculate:  the mass of water required to dissolve 100 g of KNO3 at 100°C.  the amount of KNO3

Density Define Density: Define Density: What is the equation for Density? What is the equation for Density? Complete the following problem: Complete the following problem: –To determine the density of ethyl alcohol, a student pipets a 5.00 mL sample into an empty flask weighing g. He finds that the mass of the flask + ethyl alchol = g. Calculate the density of ethyl alcohol.