Edexcel A Level Chemistry:復習筆記7.7.1 Mass Spectrometry
Using Mass Spectra At AS level, you have used mass spectrometry to determine: Relative atomic mass from isotopic abundance Possible molecular formulae from molecular ion peaks Organic struct...
Edexcel A Level Chemistry:復習筆記7.6.6 Organic Techniques - Purity
Melting & Boiling Point Determination Melting point determination The melting point of a solid is indicative of its purity and identity A melting point can be matched to a known substanc...
2023年ukcho競賽時間已開啟報名！牛劍G5申請者的必選化學競賽
化學愛好者心中的No.1—UKChO學術活動，能在該賽事中脫穎而出的同學，可大幅度提升申請牛劍G5的成功率。需要提醒的是，2023年ukcho學術活動時間已開啟報名！感興趣的同學一定要抓緊時間準備！報名通道已開啟，想要...
Edexcel A Level Chemistry:復習筆記7.6.5 Organic Techniques - Purification
Purification Methods There are different methods to purify organic compounds, including: Solvent extraction / use of a separating funnel Use of drying agents Recrystallisation Solvent extrac...
Edexcel A Level Chemistry:復習筆記7.6.4 Organic Techniques - Preparation
Distillation & Refluxing Simple distillation Simple distillation is a common practical completed in organic chemistry It is used as there are times that a reaction does not go to complet...
Edexcel A Level Chemistry:復習筆記7.6.3 Increasing Chain Length
Grignard Reagents If we need to increase the chain length we can use?Grignard reagents Preparing Grignard reagents? A halogenoalkane is dissolved in dry ether and reacted with magnesium to p...
Edexcel A Level Chemistry:復習筆記7.6.2 Planning Reaction Schemes
Planning Reaction Schemes A large number of organic products are made from a few starting compounds using appropriate reagents and conditions Knowing how organic functional groups are relate...
Edexcel A Level Chemistry:復習筆記7.6.1 Deducing Organic Structures
Deducing Organic Structures You will be expected to deduce the empirical, molecular and structural formulae of compounds from data such as: Combustion analysis Elemental percentage compositi...
2022-2023年AMC中國區報名已開啟，AMC考試技巧和難度分布解析！
近幾年來，美本競爭不斷白熱化，SAT/ACT、托福、GPA這些標化成績已經很難讓同學們在龐大的留學生群體中脫穎而出。這個時候，就需要一些活動學術活動來幫助同學們提升“軟背景”，提高申請競爭力。今天要介紹的美國A...
2022年AMC10/12報名已開啟！內附AMC詳細報名指南！
在眾多的國際思維挑戰活動當中，美國AMC數學近年來可以說是火爆全球，成為名校申請的敲門磚！近日，中國區2022-2023學年AMC10/12活動已全面開啟報名！ AMC學術活動報名方式 兩種報名方式如下： AMC中國區組委會 ...
Edexcel A Level Chemistry:復習筆記7.5.7 Amino Acids & Proteins
Properties of 2-Amino Acids Acid / base properties of amino acids Amino acids will undergo most reactions of amines and carboxylic acids including acid-base reactions of: Amines with acids C...
Edexcel A Level Chemistry:復習筆記7.5.6 Condensation Polymerisation
Condensation Polymers Condensation polymerisation is another type of reaction whereby a polymer is produced by repeated condensation reactions between monomers Natural condensation polymers ...
