IB DP Chemistry: HL复习笔记20.2.1 Synthesis
Organic Synthesis It is possible to make a large number of organic products from a few starting compounds and the necessary reagents and conditions Knowing how organic functional groups are related...
IB DP Chemistry: HL复习笔记20.1.4 Reduction Reactions
Reduction Reactions Carbonyl compounds Alcohols can be oxidised to carbonyl compounds in the presence of a suitable oxidising agent Primary alcohol → aldehyde → carboxylic acid Secondary alcohol → ...
IB DP Chemistry: HL复习笔记20.1.3 Electrophilic Substitution Reactions
The Structure of Benzene In normal, everyday conversation the word 'aromatic' is used to refer to pleasant, fragrant smells However, in chemistry, it is used to describe molecules that contain one ...
IB DP Chemistry: HL复习笔记20.1.2 Electrophilic Addition Reactions
Electrophilic Addition Mechanism Electrophilic Addition Electrophilic addition is the addition of an electrophile (or Lewis acid) to an alkene double bond, C=C The alkene double bond, C=C, is an ar...
IB DP Chemistry: HL复习笔记20.1.1 Nucleophilic Substitution Reactions
Nucleophilic Substitution Reactions In nucleophilic substitution reactions involving halogenoalkanes, the halogen atom is replaced by a nucleophile The strength of any nucleophile depends on its ab...
IB DP Chemistry: HL复习笔记19.1.6 Electroplating
Electroplating As we have seen, electrolysis with active electrodes involves the deposit of metals onto the surface of the cathode Electroplating involves the electrolytic coating of an object with...
IB DP Chemistry: HL复习笔记19.1.5 Free Energy & Eº
Free Energy & Eº Previously we have seen the concept and term free energy, ΔGθ Free energy is a measure of the available energy to do useful work and takes into account the entropy change, ΔSθ,...
IB DP Chemistry: HL复习笔记19.1.4 Quantitative Electrolysis
Quantitative Electrolysis Michael Faraday showed, in 1833, that the amount of products obtained is dependent on the quantity of electrical charge passed through the cell Electrical charge is a meas...
IB DP Chemistry: HL复习笔记19.1.3 Electrolysis of Aqueous Solutions
Electrolysis of Aqueous Solutions We have seen previously how simple binary compounds can be electrolysed when molten and the products of electrolysis can be predicted using our knowledge of the io...
