AQA A Level Chemistry復習筆記5.1.2 Born-Haber Cycles
Constructing Born-Haber Cycles A?Born-Haber cycle?is a specific application of?Hess's Law?for ionic compounds and enable us to calculate lattice enthalpy which cannot be found by experiment ...
如何將EPQ素材融合到PS文書中？
你知道嗎？參與EPQ項目，不僅成績好有機會降分錄取，而且還可以作為素材寫入PS。 關于PS的話， 只是大多數人缺乏科研經歷， 所以要靠EPQ填充， 但是如果你自己背提已經很多了，也可以只一句話帶過，還是可以用EPQ...
AQA A Level Chemistry復習筆記4.2.4 Testing for Organic Functional Groups
Testing for Organic Functional Groups REQUIRED PRACTICAL 6 For this practical, you need to be able to give the tests and positive results for the following functional groups: Alkenes Alcohol...
AQA A Level Chemistry復習筆記4.2.3 Distillation of a Product from a Reaction
Distillation of an Organic Product REQUIRED PRACTICAL 5 Distillation of an organic product: Distillation is a common practical completed in organic chemistry For this course, the most common...
AQA A Level Chemistry復習筆記4.2.2 Identifying Anions & Cations
Identifying Anions & Cations REQUIRED PRACTICAL 4 Test Tube Reactions Simple test tube reactions can be done to identify the following ions: Group 2 ions (M2+) Ammonium ions (NH4+) Halid...
AQA A Level Chemistry復習筆記4.1.4 Factors Affecting the Rate of a Reaction
Rate of Reaction REQUIRED PRACTICAL 3 Factors which affect the rate of a chemical reaction During a reaction, the?reactants?are used up and changed into the?products The rate of a chemical r...
AQA A Level Chemistry復習筆記4.1.3 Measurement of an Enthalpy Change
Measurement of an Enthalpy Change REQUIRED PRACTICAL 2 Measuring enthalpy changes Calorimetry?is a technique used to measure changes in enthalpy of chemical reactions A?calorimeter?can be ma...
AQA A Level Chemistry復習筆記4.1.2 Performing a Titration & Volumetric Analysis
Volumetric Analysis REQUIRED PRACTICAL 1 Performing the Titration The key piece of equipment used in the titration is the burette Burettes?are usually marked to a precision of 0.10 cm3 Since...
AQA A Level Chemistry復習筆記3.7.5 Electrophilic Addition
Mechanism: Electrophilic Addition Electrophilic addition Alkenes undergo electrophilic addition reactions In an electrophilic addition reaction, two reactants form only one product So, elect...
AQA A Level Chemistry復習筆記3.7.4 Elimination
Mechanism: Elimination In an elimination reaction, a small molecule is removed leaving behind an alkene This is another reaction of halogenoalkanes The halogenoalkanes are?heated?with?ethano...
AQA A Level Chemistry復習筆記3.7.3 Nucleophilic Substitution
Mechanism: Nucleophilic Substitution A?nucleophile?is an electron-rich species that can?donate?a pair of electrons ‘Nucleophile’ means ‘nucleus/positive charge loving’ as nucleophiles are at...
AQA A Level Chemistry復習筆記3.7.2 Chlorination of Alkanes
Mechanism: Free Radical Substitution Chain reactions A?free radical?is a species with one (or more than one) unpaired electrons The diagram shows a free radical which has one unpaired electr...
