11 hours PAG11 pH Main chemical ideas: the greenhouse – measurements. effect, acid-base equilibria and pH, A study of the role of the solubility product oceans in redistributing Experiments involving: (i) energy from the Sun next Ka and the pH of acids and Accurate use of the following terms will be forms the context for alkalis; (ii) buffer solutions; required: solubility product, conjugate acid introducing the greenhouse (iii) solubility products. and conjugate base, strong acid, strong effect. The absorption of base, weak acid, pH, buffer. Carry out plenty of pH and CO2 by the oceans also pKa calculations, and make The value of Kw is given on the . provides the basis for appropriate mathematical Use of quadratic equations in pH introduction of acid–base approximations in buffer calculations will not be required. equilibria, including solution calculations. Methods of CO2 control are not required. Brønsted–Lowry theory, pH Using the Brønsted–Lowry calculations, strong and Solubility products is new content. Notes can theory of acids and bases weak acids, and buffers. be found on websites such as and . to explain equilibria The role of calcium (HSW 1). carbonate in seashells as a Considering and evaluating carbon store then leads into the role of carbon dioxide understanding of solubility and its concentration in the products. atmosphere on the greenhouse effect (HSW 10, 11, 12). How buffers work (including in everyday applications) (HSW 9).
A study of the role of the oceans in redistributing energy from the Sun next forms the context for introducing the greenhouse effect. The absorption of CO2 by the oceans also provides the basis for introduction of acid–base equilibria, including Brønsted–Lowry theory, pH calculations, strong and weak acids, and buffers. The role of calcium carbonate in seashells as a carbon store then leads into understanding of solubility products. 11 hours PAG11 – pH measurements. Experiments involving: (i) Ka and the pH of acids and alkalis; (ii) buffer solutions; (iii) solubility products. Carry out plenty of pH and pKa calculations, and make appropriate mathematical approximations in buffer solution calculations. Using the Brønsted–Lowry theory of acids and bases to explain equilibria (HSW 1). Considering and evaluating the role of carbon dioxide and its concentration in the atmosphere on the greenhouse effect (HSW 10, 11, 12). How buffers work (including in everyday applications) (HSW 9). Main chemical ideas: the greenhouse effect, acid-base equilibria and pH, solubility product Accurate use of the following terms will be required: solubility product, conjugate acid and conjugate base, strong acid, strong base, weak acid, pH, buffer. The value of Kw is given on the . Use of quadratic equations in pH calculations will not be required. Methods of CO2 control are not required. Solubility products is new content. Notes can be found on websites such as and .
Chemistry%20B%20lesson%20planning%20support%20-%20all%20topics%20-%2020160204%20release.docx