AQA A Level Chemistry復習筆記7.3.3 Biodiesel
Biodiesel Biodiesel Biodiesel is made from renewable vegetable oils rather than non sustainable petrochemicals Natural triglyceride oils are converted to esters of methanol, which makes them...
AQA A Level Chemistry復習筆記7.3.2 Esters
Esters Esters Esters?are?a carboxylic acid derivative?which contains the?ester group, -COO- An ester is named after the parent carboxylic acid from which it is derived Remove the -oic acid suffix f...
AQA A Level Chemistry復習筆記7.2.3 Nucleophilic Addition
Nucleophilic Addition Many of the reactions which carbonyl compounds undergo are nucleophilic addition reactions The carbonyl group -C=O, in aldehydes and ketones is polarised The oxygen ato...
AQA A Level Chemistry復習筆記7.2.2 Reduction of Carbonyls
Reduction of Carbonyls Reduction of Carbonyls There are a large number of reducing agents which will reduce both an aldehyde and a ketone to an alcohol Aldehydes are reduced to primary alcoh...
AQA A Level Chemistry復習筆記7.1.3 Racemic Mixtures
Racemic Mixtures Net Optical activity Let’s suppose that in a solution, there is 20% of the enantiomer which rotates the plane polarised light?clockwise?and 80% of the enantiomer which rotat...
AQA A Level Chemistry復習筆記7.1.2 Identifying Chiral Centres
Identifying Chiral Centres Identifying chiral centres in a molecule takes a bit of practice whether it is from a formula, a 2D drawing or a 3D drawing To be successful you need to differenti...
熱門專業A-Level選課推薦，附2022-2023 A-Level考試時間
A-Level課程，就是英國本土的高中課程。具有引進時間早、“能偏科”、“重刷題”的特點，是很多留學生的首選。 不過A-Level多達70多門課程，主要分為： 1.核心基礎課程：主要有數學、物理、化學、生物、地理; 2.核心...
AQA A Level Chemistry復習筆記6.3.2 Reactions with Bases
Reactions with Bases The differences in the the chemistry of +2 and +3 aqua ions can be seen in their reactions with bases The reactions of iron(II), iron(III), copper(II) and aluminium with...
AQA A Level Chemistry復習筆記6.2.7 Catalysis
Catalysis Catalysts play an important part in industry allowing reactions to be carried out more quickly and at lower temperatures There are two types of catalysts,?heterogeneous?and?homogen...
