Edexcel A Level Chemistry:復習筆記4.1.2 Standard Solutions
Core Practical 2: Preparing a Standard Solution Volumetric Analysis Volumetric analysis?is a process that uses the volume and concentration of one chemical reactant (a volumetric solution) t...
Edexcel A Level Chemistry:復習筆記4.1.1 Molar Volume of a Gas
Core Practical 1: Measuring the Molar Volume of a Gas Measuring gas volumes The volume of gas produced in a reaction can be measured by collecting the gas with a gas syringe or by the displa...
Edexcel A Level Chemistry:復習筆記3.6.2 Infrared (IR) Spectroscopy
Interpreting an IR Spectrum Infrared (IR) spectroscopy?is a technique used to identify compounds based on changes in?vibrations?of atoms when they?absorb?IR of certain?frequencies A?spectrop...
Edexcel A Level Chemistry:復習筆記3.6.1 Mass Spectrometry
Mass Spectrometry Mass spectroscopy?is an analytical technique used to identify unknown compounds The molecules in the small sample are?bombarded?with high energy electrons which can cause t...
Edexcel A Level Chemistry:復習筆記3.5.3 Organic Liquid Preparation & Purification
Organic Liquid Preparation & Purification Simple Distillation This is used to separate a liquid and?soluble solid?from a solution (e.g. water from a solution of salt water) or a pure liq...
Edexcel A Level Chemistry:復習筆記3.5.2 Reactions of Alcohols
Reactions of Alcohols Combustion of alcohols Alcohols react with oxygen in the air when ignited and undergo?complete combustion?to form carbon dioxide and water alcohol + oxygen → carbon dio...
Edexcel A Level Chemistry:復習筆記3.5.1 Classifying Alcohols
Classifying Alcohols Alcohols?are a family of molecules that contain the?hydroxyl functional group,?-OH Their general formula is ?CnH2n+1OH The nomenclature of alcohols follows the pattern?a...
Edexcel A Level Chemistry:復習筆記3.4.5 Reactivity of Halogenoalkanes
Reactivity of Halogenoalkanes Nucleophilic substitution reactions can occur in two different ways (known as?SN2?and?SN1?reactions) depending on the structure of the halogenoalkane involved T...
Edexcel A Level Chemistry:復習筆記3.4.4 Hydrolysis of Halogenoalkanes
Relative Rates of Hydrolysis Measuring the rate of hydrolysis Acidified aqueous silver nitrate can be used to measure the rate of hydrolysis of halogenoalkanes The following method is used: ...
