CIE A Level Chemistry復習筆記1.7.10 pH Scale
The pH Scale The pH scale is a numerical scale that shows how?acidic?or?alkaline?a solution is The values on the pH scale go from 1-14 (extremely acidic substances have values of below 1) All acids...
CIE A Level Chemistry復習筆記1.7.9 Acid & Base Dissociation
Acid & Base Dissociation Strong acids A?strong acid?is an acid that?dissociates?almost?completely?in aqueous solutions HCl (hydrochloric acid), HNO3?(nitric acid) and H2SO4?(sulfuric acid) The ...
CIE A Level Chemistry復習筆記1.7.8 Br?nsted–Lowry Theory
Br?nsted–Lowry Theory The Br?nsted-Lowry Theory?defines acids and bases in terms of proton transfer between chemical compounds A?Br?nsted-Lowry acid?is a species that?gives away?a?proton?(H+) A?Br?...
CIE A Level Chemistry復習筆記1.7.7 Acids & Bases
Common Acids An?acid?is a substance that?neutralises?a base forming a?salt?and?water: 2HCl(aq) + CaO(s) ? CaCl2(aq) + H2O(l) acid??????????????????????????????? salt Acids react with bases to form ...
CIE A Level Chemistry復習筆記1.7.6 Industrial Processes
Haber & Contact Processes Equilibrium reactions are involved in some stages of large-scale production of certain chemicals An understanding of equilibrium and Le Chatelier’s principle is theref...
CIE A Level Chemistry復習筆記1.7.5 Changes Affecting the Equilibrium Constant
Changes that Affect the Equilibrium Constant Changes in concentration If all other conditions stay the same, the equilibrium constant?Kc?is?not affected?by any changes in concentration of the react...
CIE A Level Chemistry復習筆記1.7.4 Equilibrium Constant Calculations
Equilibrium Constant: Calculations Calculations involving?Kc In the equilibrium expression each figure within a square bracket represents the concentration in?mol dm-3 The?units?of?Kc?therefore dep...
CIE A Level Chemistry復習筆記1.7.3 Equilibrium Constant
Equilibrium Constant: Concentrations Equilibrium expression & constant The?equilibrium expression?is an expression that links the?equilibrium constant,?Kc, to the?concentrations of reactants an...
CIE A Level Chemistry復習筆記1.7.2 Le Chaterlier's Principle
Le Chatelier's Principle Position of the equilibrium The?position of the equilibrium?refers to the relative amounts of products and reactants in an equilibrium mixture. When the position of equilib...
