CIE A Level Chemistry復習筆記1.8.1 Collision Theory
Rate of Reaction: Collision Theory Reaction rate The?rate of a reaction?is the speed at which a chemical reaction takes place and has units?mol dm-3?s-1 The rate of a reaction can be calculated by:...
CIE A Level Chemistry復習筆記1.7.13 Indicators used in Titration
Indicators Indicators?are substances that change colour when they are added to acidic or alkaline solutions When choosing the appropriate indicator, the pH of the equivalence point is very importan...
CIE A Level Chemistry復習筆記1.7.12 pH Titration Curves
pH Titration Curves What are pH titration curves Titration is a technique used in neutralisation reactions between acids and alkalis to determine the concentration of the unknown solution It involv...
CIE A Level Chemistry復習筆記1.7.11 Strength of Acids & Bases
Strong & Weak Acids & Bases Strong and weak acids can be distinguished from each other by their: pH value?(using a pH meter or universal indicator) Electrical conductivity Reactivity pH An ...
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...
