Curriculum Expectations
E1. analyse chemical equilibrium processes, and assess their impact on biological, biochemical, and technological systems
E2. investigate the qualitative and quantitative nature of chemical systems at equilibrium, and solve related problems
E3. demonstrate an understanding of the concept of dynamic equilibrium and the variables that cause shifts in the equilibrium of chemical systems
Ontario Ministry of Education. (2008). The Ontario Curriculum Grades 11 and 12: Science.
E1. analyse chemical equilibrium processes, and assess their impact on biological, biochemical, and technological systems
- analyse the optimal conditions for a specific chemical process related to the principles of equilibrium that takes place in nature or is used in industry
- assess the impact of chemical equilibrium processes on various biological, biochemical, and technological systems
E2. investigate the qualitative and quantitative nature of chemical systems at equilibrium, and solve related problems
- use appropriate terminology related to chemical systems and equilibrium, including, but not limited to: homogeneous, closed system, reversible reaction, equilibrium constant, equilibrium concentration, molar solubility, and buffer
- predict, applying Le Châtelier’s principle or the reaction quotient for a given reaction, how various factors would affect a chemical system at equilibrium, and conduct an inquiry to test those predictions
- conduct an inquiry to determine the value of an equilibrium constant for a chemical reaction
- solve problems related to equilibrium by performing calculations involving concentrations of reactants and products
- solve problems related to acid–base equilibrium, using acid–base titration data and the pH at the equivalence point
E3. demonstrate an understanding of the concept of dynamic equilibrium and the variables that cause shifts in the equilibrium of chemical systems
- explain the concept of dynamic equilibrium, using examples of physical and chemical equilibrium systems
- explain the concept of chemical equilibrium and how it applies to the concentration of reactants and products in a chemical reaction at equilibrium
- explain Le Châtelier’s principle and how it applies to changes to a chemical reaction at equilibrium
- identify common equilibrium constants, including Keq, Ksp, Kw, Ka, Kb, and Kp, and write the expressions for each
- use the ionization constant of water (Kw) to calculate pH, pOH, [H3O+], and [OH–] for chemical reactions
- explain the Brønsted-Lowry theory of acids and bases
- compare the properties of strong and weak acids, and strong and weak bases, using the concept of dynamic equilibrium
- describe the chemical characteristics of buffer solutions
Ontario Ministry of Education. (2008). The Ontario Curriculum Grades 11 and 12: Science.