Topic 1.1 Introduction to the particulate nature of matter

• Atoms of different elements combine in fixed ratios to form compounds, which have different properties from their component elements.
  
• Mixtures contain more than one element and/or compound that are not chemically bonded together and so retain their individual properties.
  
• Mixtures are either homogeneous or heterogeneous.
  

course Materials

Class presentation to take notes on and put into notebook: 
Topic 1.1 Intro to Particulate Nature of Matter

Homework Assignment: 
Balancing Chemical Equations Practice 
Study Guide Homework

Balancing Chemical Equations Simulation 

Balancing Chemical Equations Tutorial

Balancing Chemical Equations Tutorial #2

Topic 1.2 The mole concept

• Masses of atoms are compared on a scale relative to 12C and are expressed as relative atomic mass (Ar) and relative formula/molecular mass (Mr).
• Molar mass (M) has the units g mol-1. 
• The empirical formula and molecular formula of a compound give the simplest ratio and the actual number of atoms present in a molecule respectively. 
• The mole is a fixed number of particles and refers to the amount, n, of substance. 

Course materials

Class presentation to take notes on and put into notebook: 
Topic 1.2 The Mole Concept

Homework Assignment: 
The Mole Concept 
Significant Figures Rules & Practice

Converting between mass, moles, and atoms tutorial

Topic 1.3 Reacting Masses and Volumes

• Reactants can be either limiting or excess.
  
• The experimental yield can be different from the theoretical yield.
  
• Avogadro’s law enables the mole ratio of reacting gases to be determined from volumes of the gases.
  
• The molar volume of an ideal gas is a constant at specified temperature and pressure.
  
• The molar concentration of a solution is determined by the amount of solute and the volume of solution.
  
• A standard solution is one of known concentration. 
  

Course Materials

Class presentation to take notes on and put into notebook: 
Topic 1.3 Reacting Masses and Volumes

Homework Assignment: 
Determining the Limiting Reagent and Theoretical/Experimental/Percent Yields 
Study Guide Homework

Limiting Reagent Calculations Tutorial

Theoretical and Experimental Yield Tutorials

Gas Law Calculations tutorial

Molarity (concentration) calculations tutorial

Study guides for unit exam

Application and Skills checklist (IB specific): Stoichiometric Relationships Study Guide
Stoichiometric Relationship Practice Problems: Stoichiometric Relationships Practice Problems
Do all the problems in the study guide that we did not do as homework (MC - do even, SR - do odd)