CHEMISTRY 12                                                 06.02.2007

 

Text: Kessel, H., Chemistry 12, 2003, Nelson

Suggested workbook- Hebdon 12, $24

Data Booklet

 

Outline – 5 major units, Labs (16), Gov.Exam (worth 40%)

-       Tests and Quizzes, Assignments, and Labs worth 60%

-       (all marks equal)

 

Tests:  missed tests written on the day you return (lunch, after school)

·     for a maximum of your average! Or Zero or the mark you get.

 

Course Content:

 

Intro.

Chemistry is the study of matter (properties, composition, behaviour)

It requires observations.  (details!, specific,)

Properties:  melting and boiling points, hardness, colour, crystal structure, transparency (wavelength absorption), texture, solubility (solute dissolved in a solvent), phase (solid, liq, gas, aq,  gel, suspension (precipitate in a liquid) …

Atomic Theory: The smallest part of an element is an atom. Subatomic particles include the electron in a cloud around the massive nucleus made up of protons and neutrons.  Electron behaviour creates ions.   Positive and negative ions may combine to form ionic solids.  Metals form positive ions by losing electrons, non-metals form negative ions by gaining electrons.   Covalent compounds are formed when…two non-metals share their electrons.

 

 

 

 

 

 

 

 

 

 

Necessary Skills for Chemistry:

-       measurement using equipment

-       metric system and mathematics

-       lab safety

-       observation skills

 

 

 

 

 

 

 

UNIT I : REACTION KINETICS

 

 

Reactions mean:

-chemicals mix and react according to

-balanced formula using proper notation

-measurement of amounts in grams, mol

 

Kinetics:

-       all particles are moving

-       keeping track of energy (kJ- kilojoules)

-       The rate of a reaction (  amount  /  time)

Examples of rates:  km/h,  words/min, $/kg, $/L

 

I.1 Representing Reaction Rates

Reference: Hebdon Unit 1, Nelson Ch.6 p.360  6.1 Rate of Reaction

 

- use the two unit system to write a math number and units

Hebdon Q. 1-5

Example  If I go 100 km  in 2 h, what is my average rate?

   100km/2 h =  50   km/h

 

What could we measure to describe a rate of reaction/

 

[mol/L]/s

 

mol/s

 

g/s

 

g/min

 

colour intensity/s

 

ºC/s